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Prime Tuple Database
Prime p0= 1991542909839862471 starts a
Symmetric tuple of 18 consecutive primes (SPT).
dn: 0 22 20 24 34 8 18 22 30 32 30 22 18 8 34 24 20 22 (?)
an: 0 22 42 66 100 108 126 148 178 210 240 262 280 288 322 346 366 388
All 18 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 388
Found by: [AF>Amis des Lapins] Phil1966
db: batch=80, k=18, 22 20 24 34 8 18 22 30 32
dn: 0 22 20 24 34 8 18 22 30 32 30 22 18 8 34 24 20 22 (?)
an: 0 22 42 66 100 108 126 148 178 210 240 262 280 288 322 346 366 388
All 18 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 388
Found by: [AF>Amis des Lapins] Phil1966
db: batch=80, k=18, 22 20 24 34 8 18 22 30 32
| STPT(10) | 1991541807393934067 | 0 2 30 32 42 44 54 56 84 86 | -1102445928404 |
| STPT(10) | 1991541924766989599 | 0 2 12 14 90 92 168 170 180 182 | -985072872872 |
| SPT(16) | 1991542041503725463 | 0 54 110 114 168 176 180 228 236 284 288 296 350 354 410 464 | -868336137008 |
| STPT(10) | 1991542150352537087 | 0 2 30 32 42 44 54 56 84 86 | -759487325384 |
| SPT(16) | 1991542543646615339 | 0 20 32 42 48 72 84 122 210 248 260 284 290 300 312 332 | -366193247132 |
| STPT(10) | 1991542627717482911 | 0 2 36 38 78 80 120 122 156 158 | -282122379560 |
| SPT(16) | 1991543415397459387 | 0 22 36 46 66 72 112 120 136 144 184 190 210 220 234 256 | 505557596916 |
| SPT(16) | 1991543642766500327 | 0 44 50 84 96 114 116 120 326 330 332 350 362 396 402 446 | 732926637856 |
| STPT(12) | 1991543689494261269 | 0 2 12 14 42 44 48 50 78 80 90 92 | 779654398798 |
| SPT(16) | 1991543722978563421 | 0 16 52 82 126 150 162 166 192 196 208 232 276 306 342 358 | 813138700950 |
| SPT(16) | 1991543955654115013 | 0 86 98 110 128 204 218 258 266 306 320 396 414 426 438 524 | 1045814252542 |
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