Composite Sequences Base 5 Digit 4

The Riesel project Base 5 has eliminated all but 126 candidate seeds less than 346801 testing out to approximatly 540000 digits.

Some large prime values from the Riesel project
seedPrime at
257708535176
105782551766
3938558032
151026559670
30994565095
301016586858
266206608649
270748614625
210092618136
158750911502

754 values to 5000 digits.
427, 637, 661, 1395, 2269, 2487, 2721, 2763, 3621, 3855, 3937, 4495, 4905, 5373, 6901, 7755, 8493, 9163, 9373, 9541, 10153, 10699, 11811, 12181, 12307, 14187, 14655, 15223, 15747, 15949, 16261, 16549, 17151, 17251, 17275, 17641, 17977, 18655, 18913, 20577, 22165, 22477, 22933, 22965, 23047, 23703, 23901, 23905, 24915, 25441, 25461, 25999, 26221, 27937, 27997, 29443, 29515, 29543, 30063, 30067, 30993, 31341, 31705, 31737, 31903, 32581, 32907, 33077, 33565, 34353, 34665, 34899, 34977, 35247, 35437, 35815, 35953, 36781, 38335, 38347, 38557, 39153, 40027, 40831, 40941, 41377, 41587, 43155, 44613, 44653, 45433, 45741, 47125, 47461, 47535, 48175, 48393, 48685, 48763, 49567, 50145, 51361, 51751, 52371, 52921, 53187, 53541, 53545, 53857, 55521, 56749, 57405, 58221, 58843, 58881, 59125, 59283, 60175, 60327, 60775, 60931, 61663, 62199, 63837, 63931, 64383, 64597, 66235, 66411, 66493, 66915, 66957, 66961, 67015, 67191, 67795, 68049, 68131, 68575, 68805, 69099, 69301, 69801, 70081, 70489, 71083, 71145, 71533, 72109, 72531, 72889, 73197, 74133, 74467, 74527, 74685, 75075, 75255, 76321, 76353, 79261, 79317, 80353, 80445, 81133, 81523, 81807, 82863, 82951, 83295, 83713, 84199, 84465, 85423, 85677, 85891, 86593, 86613, 86761, 87145, 87351, 87393, 87663, 88411, 88443, 88819, 88827, 90081, 90549, 90637, 90751, 91683, 92031, 92935, 95661, 96399, 96421, 97185, 97365, 97435, 97767, 98037, 98449, 99355, 99385, 99697, 99855, 100185, 100767, 102511, 102817, 102951, 102975, 103851, 104443, 104511, 104943, 105493, 105745, 105781, 106425, 106857, 106975, 107233, 107353, 107443, 109081, 109237, 109425, 109815, 109837, 109861, 111265, 111841, 112233, 112399, 112747, 113367, 114985, 115251, 115785, 118017, 118317, 118563, 118785, 118807, 119097, 119143, 119455, 119689, 119877, 120001, 120507, 120621, 121171, 121437, 121465, 122649, 122925, 123435, 124155, 124321, 124489, 124759, 124833, 125337, 125457, 126471, 127173, 127755, 127855, 127933, 128011, 130375, 130483, 131847, 132223, 132477, 132921, 133137, 134265, 134349, 136587, 136803, 137161, 137335, 138097, 138171, 138663, 139263, 139845, 139969, 140901, 142201, 142263, 143631, 143641, 144291, 144991, 145113, 145327, 145461, 145483, 146263, 146755, 147067, 147595, 147843, 147921, 147963, 148041, 149017, 149647, 150141, 150241, 150343, 151025, 151041, 151701, 151723, 152113, 152427, 152827, 152871, 153697, 154551, 154843, 155055, 155475, 155491, 156147, 156271, 156523, 156693, 156771, 156871, 157203, 157671, 157887, 158217, 158749, 159093, 159387, 159621, 160047, 161193, 161571, 162093, 162433, 162495, 162667, 162723, 164149, 164641, 164851, 165451, 166185, 166191, 167115, 167191, 167245, 167737, 168025, 168595, 169219, 169353, 169605, 169687, 169975, 170385, 170445, 170655, 170907, 170931, 171063, 171361, 171747, 172549, 173197, 174343, 175123, 175267, 176233, 176817, 176863, 177417, 177741, 178491, 178657, 179173, 180041, 180061, 180373, 180525, 180841, 181071, 181753, 182163, 182211, 182397, 183915, 184203, 184507, 185127, 185521, 187135, 187233, 187393, 187833, 187915, 188325, 188361, 189765, 190333, 190467, 190681, 191217, 192417, 192651, 192907, 193041, 193083, 193743, 193785, 193899, 194367, 194601, 195045, 195871, 196177, 196827, 196885, 197223, 197773, 198345, 198523, 198741, 200061, 200131, 200263, 201465, 201511, 201589, 201777, 201897, 202111, 202423, 203035, 204121, 204247, 204393, 204447, 205251, 205515, 205543, 206893, 207393, 207493, 207985, 208453, 208953, 209073, 209421, 209545, 210091, 211207, 212349, 212697, 213055, 213367, 213987, 214881, 214957, 215037, 217591, 217593, 217693, 220197, 221731, 222213, 222487, 222925, 224397, 224413, 224743, 226347, 226857, 227953, 227967, 228397, 229099, 230715, 231217, 231495, 231673, 232041, 232977, 233643, 233803, 234225, 234349, 234787, 235063, 236251, 238549, 238693, 239061, 239103, 239181, 239313, 239341, 240955, 241153, 241677, 242535, 243685, 243943, 244387, 244473, 244563, 245113, 246045, 246237, 246919, 246961, 247125, 247293, 248545, 250081, 250101, 250215, 250491, 250573, 250783, 251251, 251275, 251385, 251755, 251775, 251841, 252051, 252477, 252871, 253647, 253803, 253849, 253923, 254007, 254895, 255127, 255475, 255747, 256567, 256611, 256711, 257707, 258837, 259071, 259231, 259305, 260631, 261447, 261727, 262165, 262171, 263431, 264651, 265701, 266205, 267193, 267297, 267363, 267499, 268167, 268305, 268513, 268587, 268645, 269503, 269637, 269941, 270151, 270531, 270693, 270747, 271161, 271821, 271867, 272101, 272463, 272487, 272521, 272571, 272793, 273033, 273543, 273661, 274983, 276075, 276141, 276157, 276445, 277671, 277713, 278377, 278593, 278973, 279205, 279487, 279721, 279975, 280291, 280443, 280557, 280915, 281901, 282315, 282451, 283075, 283153, 283173, 283489, 284263, 284421, 285337, 285597, 285727, 287287, 287625, 288087, 288793, 289183, 289471, 290277, 291363, 291523, 291807, 292413, 292491, 292615, 292647, 292881, 293377, 294253, 294697, 294703, 295185, 295299, 295429, 296023, 297015, 297025, 298441, 298933, 299005, 300561, 301015, 301561, 302491, 302575, 303483, 304003, 304549, 304993, 305641, 305695, 305715, 306187, 306253, 306397, 306765, 307177, 307699, 307723, 308293, 309045, 309067, 309147, 309373, 309697, 309927, 310675, 310713, 310923, 311311, 312271, 313125, 313651, 314923, 316167, 316503, 316593, 316713, 316813, 318277, 319657, 319911, 320905, 321507, 322053, 322251, 322497, 324361, 324961, 324997, 325195, 325845, 325917, 325921, 325927, 326833, 326835, 326961, 327925, 328963, 328977, 329353, 329583, 329875, 329953, 329995, 330285, 330675, 330835, 331591, 331881, 333795, 334747, 334773, 335413, 337227, 337341, 337543, 337575, 337597, 337855, 338143, 338553, 338865, 338947, 339727, 340167, 341407, 341551, 341985, 344317, 344383, 344407, 345109, 345265, 345397, 346077, 346101, 346627

978 values to 3500 digits.
427, 637, 661, 1005, 1395, 2269, 2487, 2721, 2763, 3621, 3855, 3937, 4495, 4905, 5373, 6603, 6901, 7755, 8305, 8493, 9163, 9373, 9541, 10153, 10351, 10699, 11463, 11811, 12045, 12181, 12307, 14187, 14655, 15223, 15423, 15747, 15949, 16261, 16549, 17151, 17167, 17251, 17275, 17641, 17977, 18655, 18913, 20577, 22143, 22165, 22477, 22933, 22965, 23047, 23703, 23901, 23905, 24915, 25149, 25441, 25461, 25523, 25999, 26221, 27937, 27997, 29443, 29515, 29543, 30063, 30067, 30535, 30993, 31341, 31705, 31737, 31903, 32013, 32581, 32907, 33077, 33565, 34353, 34665, 34899, 34977, 35247, 35271, 35437, 35815, 35953, 36781, 37851, 38335, 38347, 38557, 39153, 40027, 40831, 40941, 41377, 41587, 42111, 43155, 44493, 44613, 44653, 45075, 45355, 45433, 45741, 47125, 47461, 47535, 47767, 48175, 48393, 48685, 48763, 49567, 50145, 51361, 51751, 52371, 52921, 53187, 53541, 53545, 53857, 55521, 56197, 56749, 57405, 58221, 58843, 58881, 59125, 59283, 60175, 60327, 60775, 60931, 61663, 62199, 63837, 63931, 64383, 64597, 66235, 66411, 66493, 66915, 66957, 66961, 66993, 67015, 67191, 67621, 67737, 67795, 68049, 68131, 68575, 68805, 69099, 69301, 69801, 70081, 70191, 70489, 70993, 71083, 71145, 71533, 72063, 72109, 72531, 72889, 73197, 74133, 74467, 74527, 74685, 75075, 75255, 75471, 76321, 76353, 76513, 79261, 79317, 80061, 80353, 80445, 81133, 81523, 81807, 82863, 82951, 83295, 83713, 84199, 84465, 84543, 85423, 85635, 85677, 85891, 86593, 86613, 86761, 87145, 87351, 87393, 87663, 87843, 88411, 88443, 88819, 88827, 90081, 90549, 90637, 90751, 91005, 91683, 92031, 92577, 92935, 95251, 95661, 96399, 96421, 97185, 97365, 97435, 97767, 97933, 98037, 98449, 98785, 99355, 99385, 99697, 99855, 100185, 100767, 102511, 102817, 102951, 102975, 103851, 104443, 104511, 104943, 105493, 105745, 105781, 106425, 106857, 106975, 107233, 107353, 107443, 108255, 108277, 108769, 109081, 109237, 109425, 109795, 109815, 109837, 109861, 111265, 111841, 112233, 112399, 112441, 112747, 113367, 114985, 115251, 115785, 116803, 117259, 118017, 118317, 118563, 118785, 118807, 119097, 119143, 119455, 119689, 119877, 120001, 120507, 120621, 121171, 121437, 121465, 121555, 121873, 122649, 122925, 123355, 123435, 124155, 124267, 124321, 124489, 124759, 124833, 125337, 125415, 125457, 126085, 126471, 127173, 127755, 127855, 127933, 128011, 130375, 130483, 131847, 132223, 132477, 132921, 133137, 134265, 134349, 136587, 136803, 137157, 137161, 137335, 138097, 138171, 138663, 139263, 138799, 139845, 139969, 140901, 142201, 142263, 143631, 143641, 144291, 144991, 145113, 145327, 145461, 145483, 145695, 146263, 146755, 147067, 147595, 147843, 147921, 147963, 148041, 149017, 149647, 150141, 150241, 150343, 151025, 151041, 151701, 151723, 152113, 152427, 152637, 152827, 152871, 153697, 154551, 154843, 154855, 155055, 155475, 155491, 156147, 156271, 156523, 156693, 156771, 156871, 157203, 157671, 157887, 158217, 158749, 159093, 159387, 159621, 160047, 160555, 161193, 161571, 162093, 162433, 162495, 162667, 162723, 164149, 164641, 164851, 165099, 165451, 166185, 166191, 166933, 167115, 167191, 167245, 167737, 168025, 168595, 169219, 169353, 169605, 169687, 169975, 170385, 170445, 170655, 170907, 170931, 171063, 171361, 171747, 172549, 173197, 173743, 174331, 174343, 175123, 175267, 176233, 176527, 176817, 176863, 177417, 177697, 177741, 178065, 178087, 178491, 178657, 179173, 180041, 180061, 180373, 180525, 180841, 181071, 181753, 182163, 182211, 182245, 182397, 183915, 184117, 184203, 184507, 185127, 185361, 185521, 186463, 187135, 187233, 187393, 187833, 187915, 188325, 188361, 189765, 190333, 190467, 190681, 191217, 192417, 192651, 192907, 193041, 193083, 193743, 193785, 193899, 194367, 194601, 195045, 195871, 196177, 196827, 196885, 197223, 197773, 198345, 198523, 198741, 199927, 200061, 200131, 200263, 200731, 201465, 201511, 201589, 201777, 201897, 202111, 202423, 203035, 204097, 204121, 204247, 204393, 204447, 205251, 205515, 205543, 205755, 205833, 206893, 207393, 207493, 207649, 207985, 208453, 208953, 209073, 209157, 209421, 209545, 210091, 211207, 212349, 212697, 213055, 213367, 213903, 213987, 214881, 214957, 215037, 216343, 217591, 217593, 217693, 220197, 221731, 222213, 222487, 222925, 223425, 224397, 224413, 224743, 226347, 226857, 227953, 227967, 228397, 229099, 230715, 231217, 231495, 231673, 232041, 232977, 233643, 233803, 234225, 234349, 234787, 235063, 236251, 237385, 238549, 238693, 239061, 239103, 239181, 239313, 239341, 239841, 240955, 241153, 241677, 242415, 242535, 243685, 243943, 244387, 244473, 244563, 245113, 246045, 246237, 246919, 246961, 247017, 247125, 247293, 248545, 249301, 250081, 250101, 250215, 250491, 250573, 250783, 251197, 251211, 251251, 251275, 251385, 251755, 251775, 251841, 251875, 252051, 252477, 252871, 253647, 253803, 253849, 253923, 254007, 254037, 254895, 255127, 255475, 255747, 256567, 256611, 256711, 256995, 257707, 258799, 258837, 259071, 259231, 259305, 260631, 261447, 261727, 261961, 262165, 262171, 263431, 264547, 264651, 265701, 266205, 266247, 267193, 267297, 267363, 267499, 267655, 267685, 268167, 268305, 268513, 268587, 268591, 268623, 268645, 269503, 269637, 269941, 270151, 270531, 270693, 270747, 271161, 271821, 271867, 272101, 272463, 272487, 272521, 272571, 272793, 273033, 273345, 273543, 273661, 274983, 276075, 276141, 276157, 276445, 277671, 277713, 278131, 278377, 278593, 278973, 279205, 279487, 279721, 279975, 280291, 280443, 280557, 280915, 281901, 282315, 282451, 283075, 283153, 283173, 283489, 284263, 284421, 284691, 285337, 285597, 285727, 286551, 286599, 287287, 287625, 288087, 288109, 288793, 289183, 289471, 290083, 290277, 291363, 291523, 291807, 292413, 292491, 292615, 292647, 292881, 293377, 294253, 294697, 294703, 295185, 295299, 295429, 296023, 297015, 297025, 298441, 298933, 299005, 300561, 300805, 301015, 301149, 301257, 301561, 301661, 302491, 302575, 302653, 303483, 304003, 304255, 304549, 304993, 305641, 305695, 305715, 306187, 306253, 306397, 306651, 306765, 306885, 307177, 307699, 307723, 308293, 309043, 309045, 309067, 309147, 309373, 309697, 309927, 310675, 310713, 310923, 311311, 312271, 312537, 313125, 313651, 314923, 316167, 316503, 316593, 316713, 316813, 317863, 318277, 319657, 319911, 320163, 320905, 321507, 322053, 322251, 322497, 322641, 324361, 324705, 324961, 324997, 325195, 325761, 325845, 325917, 325921, 325927, 326833, 326835, 326961, 327925, 328963, 328977, 329353, 329583, 329875, 329953, 329995, 330285, 330675, 330835, 331591, 331881, 333795, 334747, 334773, 335413, 337227, 337341, 337543, 337575, 337597, 337855, 337987, 338143, 338553, 338791, 338865, 338947, 339075, 339727, 340167, 341407, 341551, 341755, 341985, 344317, 344383, 344407, 345109, 345265, 345397, 345643, 346077, 346101, 346627, 346735
The 1141 canddidates checked to 2000 digits. 85,427,637,661,1005,1395,2149,2269,2487,2721, 2763,3621,3855,3937,4495,4717,4905,4923,5373,5863, 6603,6901,7755,8305,8383,8493,8587,9081,9163,9315, 9373,9541,10153,10351,10411,10443,10699,11463,11811,12045, 12181,12307,12397,12517,14187,14655,15223,15423,15747,15949, 16093,16261,16549,17151,17167,17251,17275,17641,17977,18655, 18913,19305,20577,22143,22165,22477,22933,22965,23047,23703, 23901,23905,24915,25149,25441,25461,25523,25999,26221,27643, 27937,27997,28351,28737,29443,29515,29543,30063,30067,30441, 30535,30993,31341,31705,31737,31903,32013,32581,32851,32907, 33077,33565,34353,34665,34899,34977,35247,35271,35437,35815, 35953,36495,36781,37045,37843,37851,38335,38347,38557,39153, 39427,39657,40027,40831,40941,41377,41587,41685,41767,41965, 42111,43155,44493,44613,44653,45075,45355,45433,45741,46167, 47125,47461,47535,47767,48061,48175,48393,48685,48763,49567, 50145,50223,50445,50827,51361,51751,52371,52921,53187,53395, 53541,53545,53749,53857,55521,55963,56173,56197,56749,57405, 58221,58843,58881,59125,59283,59781,60175,60327,60775,60795, 60931,61663,62199,63837,63931,64383,64573,64597,64965,66235, 66411,66493,66915,66957,66961,66993,67015,67191,67575,67621, 67737,67795,68049,68125,68131,68575,68805,69099,69301,69801, 70081,70191,70489,70993,71083,71145,71533,72063,72109,72163, 72241,72531,72573,72843,72889,73197,73587,74133,74467,74527, 74683,74685,75075,75255,75471,76321,76353,76513,77097,79261, 79317,80061,80353,80445,81133,81177,81523,81781,81807,82323, 82863,82951,83295,83713,83875,83941,84199,84465,84543,85423, 85635,85677,85891,86025,86551,86593,86613,86761,87145,87327, 87351,87393,87663,87843,88033,88411,88443,88819,88827,88957, 90081,90549,90637,90751,91005,91683,92031,92577,92935,93997, 94917,95251,95661,96399,96421,97185,97365,97435,97767,97933, 98037,98449,98487,98785,99355,99385,99697,99855,100185,100767, 101121,101419,101511,101547,101923,102511,102817,102951,102975,103203, 103851,104335,104443,104511,104581,104943,105093,105411,105493,105745, 105781,106425,106857,106971,106975,107233,107353,107443,107595,108057, 108255,108277,108769,109081,109237,109425,109795,109815,109837,109861, 109987,111265,111841,112233,112399,112441,112747,113055,113347,113367, 114573,114985,115251,115491,115785,116157,116803,117259,117949,118017, 118281,118317,118563,118785,118807,119097,119143,119455,119689,119877, 120001,120507,120621,121011,121171,121197,121437,121465,121555,121873, 122233,122649,122857,122925,123099,123355,123435,124155,124267,124321, 124489,124681,124759,124833,125337,125415,125457,126085,126471,127173, 127755,127855,127933,128011,130375,130483,131847,132223,132477,132921, 133137,133885,134037,134265,134349,135997,136587,136803,137157,137161, 137335,138097,138171,138663,139263,138799,139845,139969,140313,140527, 140901,142201,142263,143631,143641,143845,144291,144991,145113,145327, 145461,145483,145695,146263,146599,146631,146755,147067,147595,147843, 147921,147963,148041,148425,149017,149647,150031,150141,150241,150343, 151025,151041,151503,151701,151723,152113,152265,152427,152637,152827, 152871,153697,154551,154843,154855,155055,155475,155491,155577,156147, 156271,156523,156693,156771,156871,157203,157671,157887,157957,158217, 158433,158749,158961,159093,159387,159621,159891,160047,160555,161193, 161571,161731,162093,162433,162495,162667,162723,164149,164641,164851, 165099,165451,166185,166191,166933,167115,167191,167245,167737,167917, 168025,168283,168423,168595,169219,169353,169605,169687,169975,170163, 170385,170445,170655,170907,170931,171063,171193,171361,171457,171747, 172549,173197,173283,173743,174331,174343,175123,175267,175303,176233, 176527,176817,176863,176937,177417,177697,177741,178065,178087,178491, 178657,179173,179853,180041,180061,180291,180373,180525,180841,181071, 181753,182163,182197,182211,182245,182397,183319,183331,183709,183915, 184117,184203,184507,185127,185361,185521,186277,186463,187135,187233, 187393,187833,187915,188325,188361,189765,189807,190333,190435,190467, 190681,191107,191217,192417,192651,192907,193041,193083,193735,193743, 193785,193899,194367,194601,195045,195871,196177,196317,196753,196827, 196885,197223,197773,198345,198523,198741,198927,199771,199927,200061, 200103,200131,200263,200601,200731,201465,201511,201589,201777,201897, 202111,202423,203035,204097,204121,204247,204393,204447,205251,205515, 205543,205755,205833,206743,206893,207111,207135,207393,207435,207493, 207649,207805,207985,208453,208821,208953,209073,209157,209343,209421, 209545,209599,210087,210091,210123,211207,212251,212349,212697,213055, 213367,213477,213903,213987,214063,214435,214699,214881,214921,214957, 215037,216015,216073,216343,217263,217591,217593,217693,219021,219111, 219661,220197,221341,221731,222213,222487,222883,222925,223425,223743, 224397,224413,224743,226347,226837,226857,227049,227953,227967,228187, 228397,229099,230715,231217,231495,231673,232041,232899,232977,233175, 233643,233803,234225,234349,234693,234787,235063,235785,236251,237385, 237715,238227,238363,238549,238693,239061,239081,239103,239181,239313, 239341,239473,239841,240955,241045,241153,241657,241677,242415,242535, 243163,243313,243433,243685,243943,244177,244387,244407,244473,244563, 245113,245413,245947,246045,246237,246919,246961,247017,247125,247293, 248545,249295,249301,250081,250101,250215,250491,250573,250783,251127, 251197,251211,251251,251275,251385,251755,251775,251841,251875,252051, 252477,252871,253257,253261,253647,253803,253849,253923,254007,254037, 254895,255127,255475,255747,255795,256567,256611,256711,256995,257397, 257707,257827,258415,258799,258837,259071,259231,259305,260299,260631, 261099,261103,261447,261727,261961,262165,262171,263163,263431,264337, 264547,264651,264901,265315,265387,265701,265705,265735,266205,266247, 267193,267297,267363,267499,267655,267685,268167,268305,268513,268587, 268591,268623,268645,268825,269503,269637,269815,269941,270151,270531, 270693,270747,271161,271615,271821,271867,272101,272463,272487,272521, 272571,272793,273033,273345,273543,273661,274983,276075,276133,276141, 276157,276445,276465,277671,277713,277915,278029,278131,278377,278593, 278973,279205,279487,279721,279897,279975,280291,280443,280557,280915, 281901,282315,282451,282793,283075,283131,283153,283173,283489,284263, 284347,284421,284691,285205,285337,285597,285727,286155,286551,286599, 286609,287287,287425,287625,288087,288109,288793,289183,289471,290083, 290277,291363,291523,291807,292377,292413,292491,292615,292647,292881, 293161,293377,293863,294253,294697,294703,295051,295185,295299,295341, 295429,296023,296265,297015,297025,297915,298227,298441,298933,299005, 299323,300561,300805,301015,301149,301257,301561,301661,302491,302575, 302653,303483,304003,304255,304549,304993,305295,305641,305695,305715, 306187,306253,306397,306651,306765,306807,306885,307047,307177,307183, 307699,307723,308071,308293,309043,309045,309067,309147,309373,309573, 309697,309927,309949,310675,310707,310713,310923,311055,311311,312271, 312537,312613,312949,313125,313651,314065,314467,314923,315631,316167, 316503,316593,316713,316813,317433,317863,317941,318075,318277,318643, 319657,319911,320163,320347,320905,321373,321507,321685,321853,321951, 322053,322251,322497,322621,322641,324361,324535,324705,324961,324997, 325141,325195,325761,325845,325917,325921,325927,326833,326835,326961, 327255,327925,328963,328977,329271,329353,329583,329875,329953,329995, 330285,330675,330835,331591,331881,332505,333795,334653,334747,334773, 335277,335355,335391,335413,337227,337341,337543,337575,337597,337855, 337987,338143,338553,338791,338865,338947,339075,339727,339915,340167, 341085,341407,341551,341755,341985,342457,344317,344383,344407,345109, 345265,345375,345397,345643,345751,345963,346077,346101,346123,346627, 346735,346801,

Found 1350 values checking 2000 digits. Some of these are duplicates. as they are composites of the form 5k+4.
85, 427, 429, 637, 661, 1005, 1395, 2139, 2149, 2269, 2487, 2721, 2763, 3189, 3309, 3621, 3855, 3937, 4495, 4717, 4905, 4923, 5029, 5373, 5863, 6603, 6901, 6979, 7755, 8305, 8383, 8493, 8587, 9081, 9163, 9315, 9373, 9541, 10153, 10351, 10411, 10443, 10699, 10749, 11349, 11463, 11811, 12045, 12181, 12307, 12397, 12439, 12517, 13609, 13819, 14187, 14655, 15223, 15423, 15747, 15949, 16093, 16261, 16549, 17151, 17167, 17251, 17275, 17641, 17977, 18109, 18655, 18913, 19279, 19305, 19689, 20577, 22143, 22165, 22477, 22479, 22933, 22965, 23047, 23589, 23703, 23901, 23905, 24529, 24619, 24915, 25149, 25441, 25461, 25523, 25999, 26221, 26869, 27643, 27937, 27997, 28351, 28737, 29319, 29443, 29515, 29543, 30063, 30067, 30441, 30535, 30993, 31341, 31705, 31737, 31903, 32013, 32581, 32851, 32907, 33019, 33077, 33565, 34353, 34509, 34665, 34899, 34977, 35247, 35271, 35437, 35815, 35953, 36495, 36781, 37045, 37843, 37851, 38335, 38347, 38557, 38779, 39153, 39427, 39657, 40027, 40831, 40941, 41377, 41529, 41587, 41685, 41767, 41919, 41965, 42111, 42469, 42939, 43155, 44493, 44613, 44653, 45075, 45355, 45409, 45433, 45741, 45819, 46167, 46579, 46869, 47125, 47461, 47535, 47709, 47767, 48061, 48175, 48393, 48685, 48763, 49567, 50145, 50223, 50445, 50769, 50827, 51361, 51751, 51759, 52059, 52219, 52371, 52921, 53187, 53395, 53499, 53541, 53545, 53749, 53857, 55521, 55963, 56173, 56197, 56749, 57319, 57405, 58221, 58843, 58881, 59059, 59125, 59283, 59781, 60175, 60229, 60327, 60775, 60795, 60909, 60931, 61539, 61663, 61989, 62199, 62589, 63837, 63931, 64383, 64573, 64597, 64965, 66235, 66411, 66493, 66915, 66957, 66961, 66993, 67015, 67191, 67575, 67621, 67737, 67795, 68049, 68125, 68131, 68575, 68805, 69099, 69301, 69801, 70081, 70191, 70489, 70939, 70993, 71083, 71145, 71533, 72063, 72109, 72163, 72241, 72531, 72573, 72843, 72889, 73197, 73279, 73587, 74133, 74467, 74527, 74683, 74685, 75075, 75255, 75471, 76119, 76321, 76353, 76513, 77097, 77119, 78739, 79261, 79317, 79749, 80061, 80353, 80445, 80469, 81133, 81177, 81309, 81523, 81781, 81807, 82323, 82749, 82863, 82951, 83295, 83713, 83875, 83941, 84199, 84465, 84543, 85423, 85635, 85677, 85759, 85839, 85891, 86025, 86259, 86379, 86551, 86593, 86613, 86761, 87145, 87327, 87351, 87393, 87663, 87843, 88033, 88209, 88411, 88443, 88819, 88827, 88957, 89889, 90081, 90549, 90637, 90751, 91005, 91683, 92031, 92577, 92935, 93279, 93997, 94569, 94917, 95251, 95661, 96399, 96421, 96529, 97185, 97365, 97435, 97767, 97933, 98037, 98449, 98487, 98785, 99355, 99385, 99697, 99855, 100185, 100767, 101121, 101419, 101511, 101547, 101923, 102511, 102817, 102889, 102951, 102975, 103203, 103851, 104335, 104443, 104511, 104581, 104943, 105093, 105411, 105493, 105745, 105781, 106425, 106857, 106971, 106975, 107233, 107353, 107443, 107595, 108057, 108255, 108277, 108769, 109081, 109237, 109425, 109795, 109815, 109837, 109861, 109987, 110719, 110829, 111265, 111841, 112233, 112389, 112399, 112441, 112747, 113055, 113347, 113367, 114573, 114669, 114829, 114985, 115239, 115251, 115491, 115785, 116157, 116803, 117259, 117949, 118017, 118281, 118317, 118519, 118563, 118785, 118807, 119097, 119143, 119455, 119509, 119529, 119689, 119877, 120001, 120507, 120621, 121011, 121171, 121197, 121437, 121465, 121555, 121873, 122233, 122649, 122857, 122925, 123099, 123355, 123435, 124155, 124267, 124321, 124489, 124579, 124681, 124759, 124833, 125337, 125415, 125457, 125749, 126085, 126471, 127173, 127209, 127309, 127619, 127755, 127855, 127933, 128011, 129999, 130375, 130483, 131109, 131847, 132223, 132477, 132921, 133137, 133885, 134037, 134265, 134349, 135997, 136587, 136803, 137157, 137161, 137335, 138097, 138171, 138219, 138663, 139263, 139689, 138799, 139845, 139969, 139989, 140313, 140527, 140901, 141759, 142201, 142263, 143631, 143641, 143689, 143845, 144291, 144991, 145113, 145327, 145461, 145483, 145695, 146263, 146599, 146631, 146755, 147067, 147219, 147579, 147595, 147719, 147843, 147921, 147963, 148041, 148425, 149017, 149647, 150031, 150141, 150241, 150319, 150339, 150343, 151025, 151041, 151503, 151701, 151723, 152113, 152209, 152265, 152427, 152637, 152679, 152827, 152871, 153697, 154551, 154843, 154855, 154969, 155055, 155475, 155491, 155577, 156147, 156271, 156523, 156693, 156709, 156771, 156871, 157203, 157671, 157887, 157957, 158217, 158433, 158529, 158689, 158749, 158961, 159093, 159387, 159519, 159621, 159891, 160047, 160069, 160555, 161193, 161571, 161731, 162093, 162433, 162495, 162667, 162723, 162909, 164149, 164259, 164539, 164641, 164851, 165099, 165389, 165451, 166185, 166191, 166933, 167115, 167191, 167245, 167737, 167829, 167917, 168025, 168283, 168423, 168595, 169219, 169353, 169605, 169687, 169975, 170163, 170385, 170445, 170655, 170907, 170931, 171063, 171193, 171361, 171457, 171747, 171769, 172549, 173197, 173283, 173329, 173743, 174331, 174343, 174499, 174889, 175123, 175267, 175303, 176233, 176239, 176359, 176527, 176817, 176863, 176937, 177189, 177417, 177697, 177741, 178065, 178087, 178491, 178657, 179079, 179173, 179769, 179853, 180041, 180061, 180291, 180373, 180525, 180841, 181071, 181753, 182163, 182197, 182211, 182245, 182397, 182479, 183319, 183331, 183709, 183909, 183915, 184117, 184203, 184507, 185127, 185229, 185361, 185521, 186277, 186463, 187135, 187233, 187393, 187833, 187915, 188325, 188361, 189219, 189259, 189765, 189807, 190333, 190435, 190467, 190681, 191107, 191217, 191679, 191739, 192417, 192651, 192789, 192907, 193041, 193083, 193735, 193743, 193785, 193899, 194367, 194601, 195045, 195769, 195871, 196177, 196317, 196753, 196827, 196885, 197139, 197223, 197773, 198289, 198345, 198523, 198741, 198927, 199771, 199927, 200061, 200103, 200131, 200139, 200263, 200601, 200731, 201465, 201511, 201589, 201777, 201897, 202111, 202423, 203035, 204097, 204121, 204159, 204247, 204393, 204447, 204709, 205251, 205515, 205543, 205755, 205833, 206743, 206889, 206893, 207111, 207135, 207393, 207435, 207493, 207649, 207805, 207939, 207985, 208429, 208453, 208821, 208839, 208953, 209073, 209157, 209343, 209421, 209545, 209599, 209829, 210087, 210091, 210123, 210559, 211207, 212251, 212349, 212697, 213055, 213367, 213477, 213903, 213987, 214063, 214435, 214699, 214881, 214921, 214957, 215037, 215779, 216015, 216073, 216343, 217263, 217591, 217593, 217693, 219021, 219111, 219661, 220197, 221341, 221731, 222213, 222469, 222487, 222883, 222925, 223069, 223269, 223425, 223743, 224397, 224413, 224743, 225379, 226347, 226779, 226837, 226857, 227049, 227169, 227953, 227967, 228187, 228397, 228709, 229099, 230715, 230839, 231217, 231495, 231673, 232041, 232899, 232977, 233175, 233643, 233803, 234225, 234349, 234693, 234787, 235063, 235629, 235785, 236251, 237309, 237385, 237679, 237715, 238227, 238363, 238549, 238693, 238839, 239061, 239081, 239103, 239181, 239313, 239341, 239473, 239841, 240309, 240879, 240955, 241045, 241153, 241657, 241677, 241969, 242415, 242535, 243163, 243313, 243429, 243433, 243685, 243819, 243943, 244177, 244387, 244407, 244473, 244563, 245113, 245413, 245947, 246045, 246237, 246919, 246961, 247017, 247125, 247293, 247839, 248545, 249295, 249301, 250081, 250101, 250215, 250491, 250573, 250729, 250783, 251119, 251127, 251197, 251211, 251251, 251275, 251385, 251755, 251775, 251841, 251875, 252051, 252229, 252477, 252871, 253257, 253261, 253647, 253803, 253849, 253923, 254007, 254037, 254139, 254895, 255127, 255475, 255747, 255795, 256567, 256611, 256711, 256809, 256995, 257397, 257707, 257827, 258415, 258759, 258799, 258837, 259071, 259231, 259305, 260299, 260631, 261099, 261103, 261447, 261727, 261859, 261961, 262165, 262171, 263163, 263431, 264337, 264547, 264609, 264651, 264901, 265315, 265387, 265701, 265705, 265735, 265939, 266205, 266247, 266979, 267193, 267297, 267363, 267499, 267655, 267685, 267709, 267729, 268167, 268305, 268513, 268587, 268591, 268623, 268645, 268749, 268825, 269289, 269503, 269637, 269815, 269941, 270151, 270531, 270693, 270747, 271161, 271615, 271821, 271867, 272101, 272463, 272487, 272521, 272571, 272793, 273033, 273345, 273543, 273661, 274983, 276075, 276133, 276141, 276157, 276445, 276465, 277609, 277671, 277713, 277915, 278029, 278131, 278377, 278593, 278973, 279205, 279487, 279721, 279819, 279897, 279975, 280291, 280443, 280557, 280869, 280915, 280989, 281901, 282315, 282451, 282793, 283075, 283131, 283153, 283173, 283489, 283749, 284263, 284347, 284421, 284691, 285205, 285337, 285597, 285727, 286155, 286551, 286599, 286609, 287029, 287287, 287425, 287625, 288087, 288109, 288793, 289183, 289471, 290083, 290277, 291109, 291363, 291523, 291807, 292377, 292413, 292491, 292615, 292647, 292881, 293161, 293377, 293863, 294219, 294253, 294409, 294697, 294703, 295051, 295185, 295299, 295341, 295429, 295629, 296023, 296265, 296419, 297015, 297025, 297915, 298227, 298441, 298909, 298933, 299005, 299323, 300561, 300805, 300879, 301015, 301149, 301257, 301561, 301639, 301661, 302491, 302575, 302653, 303483, 303879, 303979, 304003, 304255, 304549, 304659, 304993, 305295, 305641, 305695, 305715, 306187, 306253, 306397, 306651, 306765, 306807, 306885, 307047, 307177, 307183, 307699, 307723, 308071, 308293, 308319, 309043, 309045, 309067, 309147, 309373, 309573, 309697, 309927, 309949, 310675, 310707, 310713, 310923, 310999, 311055, 311311, 312271, 312537, 312613, 312949, 313125, 313651, 314065, 314467, 314923, 315631, 316167, 316503, 316593, 316713, 316813, 317433, 317863, 317941, 318075, 318277, 318643, 319189, 319657, 319659, 319911, 320163, 320347, 320905, 321373, 321507, 321685, 321853, 321919, 321951, 322053, 322251, 322497, 322621, 322641, 322869, 322989, 324361, 324535, 324705, 324829, 324961, 324997, 325141, 325195, 325761, 325845, 325917, 325921, 325927, 326833, 326835, 326961, 327255, 327925, 328963, 328977, 329271, 329353, 329583, 329875, 329953, 329995, 330285, 330675, 330835, 331179, 331591, 331881, 332059, 332469, 332505, 333795, 334579, 334653, 334747, 334773, 334789, 334809, 334969, 335079, 335277, 335355, 335391, 335413, 335959, 337227, 337341, 337543, 337575, 337597, 337855, 337879, 337987, 338109, 338143, 338553, 338689, 338791, 338865, 338947, 338979, 339075, 339727, 339915, 340167, 340249, 340629, 340659, 341085, 341407, 341551, 341755, 341985, 342457, 342879, 344029, 344317, 344383, 344407, 345109, 345265, 345375, 345397, 345499, 345643, 345751, 345963, 346077, 346101, 346123, 346509, 346627, 346735, 346801.