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Prime Tuple Database
Prime p0= 2156306929868197261 starts a
Symmetric tuple of 20 consecutive primes (SPT).
dn: 0 28 2 48 4 44 12 10 8 34 8 34 8 10 12 44 4 48 2 28 (?)
an: 0 28 30 78 82 126 138 148 156 190 198 232 240 250 262 306 310 358 360 388
All 20 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 388
Found by: Penguin
db: batch=81, k=20, 28 2 48 4 44 12 10 8 34 8
dn: 0 28 2 48 4 44 12 10 8 34 8 34 8 10 12 44 4 48 2 28 (?)
an: 0 28 30 78 82 126 138 148 156 190 198 232 240 250 262 306 310 358 360 388
All 20 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 388
Found by: Penguin
db: batch=81, k=20, 28 2 48 4 44 12 10 8 34 8
| STPT(10) | 2156304987149444177 | 0 2 12 14 72 74 132 134 144 146 | -1942718753084 |
| STPT(10) | 2156305007132037659 | 0 2 42 44 60 62 78 80 120 122 | -1922736159602 |
| STPT(10) | 2156305890767057969 | 0 2 18 20 30 32 42 44 60 62 | -1039101139292 |
| STPT(10) | 2156305989206106677 | 0 2 30 32 60 62 90 92 120 122 | -940662090584 |
| STPT(12) | 2156306170786219787 | 0 2 24 26 30 32 54 56 60 62 84 86 | -759081977474 |
| STPT(10) | 2156306778928178477 | 0 2 30 32 42 44 54 56 84 86 | -150940018784 |
| STPT(10) | 2156307346490161547 | 0 2 42 44 72 74 102 104 144 146 | 416621964286 |
| TPT(14) | 2156307401148126131 | 0 2 36 38 48 50 66 68 276 278 300 302 306 308 | 471279928870 |
| STPT(10) | 2156307944002667627 | 0 2 30 32 42 44 54 56 84 86 | 1014134470366 |
| SPT(18) | 2156308227623560573 | 0 28 54 76 138 148 168 264 280 294 310 406 426 436 498 520 546 574 | 1297755363312 |
| STPT(10) | 2156308435785616139 | 0 2 18 20 30 32 42 44 60 62 | 1505917418878 |
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