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Prime Tuple Database
Prime p0= 2121881525429647637 starts a
Symmetric tuple of 20 consecutive primes (SPT).
dn: 0 42 8 24 52 6 2 6 4 8 22 8 4 6 2 6 52 24 8 42 (?)
an: 0 42 50 74 126 132 134 140 144 152 174 182 186 192 194 200 252 276 284 326
All 20 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 326
Found by: LCB001
db: batch=80, k=20, 42 8 24 52 6 2 6 4 8 22
dn: 0 42 8 24 52 6 2 6 4 8 22 8 4 6 2 6 52 24 8 42 (?)
an: 0 42 50 74 126 132 134 140 144 152 174 182 186 192 194 200 252 276 284 326
All 20 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 326
Found by: LCB001
db: batch=80, k=20, 42 8 24 52 6 2 6 4 8 22
| SPT(16) | 2121881139654320357 | 0 74 144 150 210 312 330 332 354 356 374 476 536 542 612 686 | -385775327280 |
| STPT(10) | 2121881165254922969 | 0 2 18 20 60 62 102 104 120 122 | -360174724668 |
| STPT(10) | 2121881268538151171 | 0 2 6 8 18 20 30 32 36 38 | -256891496466 |
| STPT(10) | 2121881432624834117 | 0 2 12 14 42 44 72 74 84 86 | -92804813520 |
| STPT(10) | 2121881460744811289 | 0 2 18 20 30 32 42 44 60 62 | -64684836348 |
| SPT(16) | 2121881482140825211 | 0 22 58 60 72 108 156 186 202 232 280 316 328 330 366 388 | -43288822426 |
| STPT(10) | 2121881691747261317 | 0 2 30 32 42 44 54 56 84 86 | 166317613680 |
| SPT(16) | 2121881746354630201 | 0 6 22 28 82 96 126 162 256 292 322 336 390 396 412 418 | 220924982564 |
| STPT(10) | 2121881943366779981 | 0 2 30 32 78 80 126 128 156 158 | 417937132344 |
| SPT(16) | 2121881960634024229 | 0 18 40 78 120 124 132 138 154 160 168 172 214 252 274 292 | 435204376592 |
| SPT(16) | 2121882361029761219 | 0 18 24 38 44 74 80 84 158 162 168 198 204 218 224 242 | 835600113582 |
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