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Prime Tuple Database
Prime p0= 1991443884430781353 starts a
Symmetric tuple of 20 consecutive primes (SPT).
dn: 0 6 42 52 66 32 18 24 24 42 22 42 24 24 18 32 66 52 42 6 (?)
an: 0 6 48 100 166 198 216 240 264 306 328 370 394 418 436 468 534 586 628 634
All 20 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 634
Found by: [AF>Amis des Lapins] Phil1966
db: batch=80, k=20, 6 42 52 66 32 18 24 24 42 22
dn: 0 6 42 52 66 32 18 24 24 42 22 42 24 24 18 32 66 52 42 6 (?)
an: 0 6 48 100 166 198 216 240 264 306 328 370 394 418 436 468 534 586 628 634
All 20 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 634
Found by: [AF>Amis des Lapins] Phil1966
db: batch=80, k=20, 6 42 52 66 32 18 24 24 42 22
| STPT(10) | 1991442605943621497 | 0 2 30 32 120 122 210 212 240 242 | -1278487159856 |
| SPT(16) | 1991442606893257829 | 0 12 44 50 62 68 98 150 152 204 234 240 252 258 290 302 | -1277537523524 |
| SPT(16) | 1991442640993619599 | 0 18 34 42 48 64 84 100 132 148 168 184 190 198 214 232 | -1243437161754 |
| SPT(16) | 1991442670079315881 | 0 36 52 60 102 106 112 120 322 330 336 340 382 390 406 442 | -1214351465472 |
| STPT(10) | 1991442807878468699 | 0 2 18 20 30 32 42 44 60 62 | -1076552312654 |
| SPT(16) | 1991443863198340469 | 0 14 24 72 74 98 122 158 294 330 354 378 380 428 438 452 | -21232440884 |
| STPT(10) | 1991443943588577557 | 0 2 60 62 102 104 144 146 204 206 | 59157796204 |
| SPT(16) | 1991444212544576213 | 0 50 68 84 144 180 188 194 210 216 224 260 320 336 354 404 | 328113794860 |
| STPT(10) | 1991444245995144971 | 0 2 30 32 60 62 90 92 120 122 | 361564363618 |
| STPT(10) | 1991444440966078211 | 0 2 36 38 78 80 120 122 156 158 | 556535296858 |
| SPT(13) | 1991444507583913583 | 0 36 78 126 180 186 258 330 336 390 438 480 516 | 623153132230 |
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