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Prime Tuple Database
Prime p0= 1621832430616387481 starts a
Symmetric tuple of 18 consecutive primes (SPT).
dn: 0 8 42 6 4 12 20 90 4 56 4 90 20 12 4 6 42 8 (?)
an: 0 8 50 56 60 72 92 182 186 242 246 336 356 368 372 378 420 428
All 18 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 428
Found by: xii5ku
db: batch=78, k=18, 8 42 6 4 12 20 90 4 56
dn: 0 8 42 6 4 12 20 90 4 56 4 90 20 12 4 6 42 8 (?)
an: 0 8 50 56 60 72 92 182 186 242 246 336 356 368 372 378 420 428
All 18 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 428
Found by: xii5ku
db: batch=78, k=18, 8 42 6 4 12 20 90 4 56
| TPT(14) | 1621831134267578369 | 0 2 90 92 168 170 378 380 408 410 480 482 522 524 | -1296348809112 |
| SPT(16) | 1621831267297292347 | 0 22 64 102 220 226 234 270 286 322 330 336 454 492 534 556 | -1163319095134 |
| STPT(10) | 1621831442099304617 | 0 2 30 32 42 44 54 56 84 86 | -988517082864 |
| STPT(10) | 1621831661436027497 | 0 2 30 32 42 44 54 56 84 86 | -769180359984 |
| STPT(10) | 1621832072651176157 | 0 2 72 74 102 104 132 134 204 206 | -357965211324 |
| STPT(10) | 1621832148964053359 | 0 2 12 14 90 92 168 170 180 182 | -281652334122 |
| SPT(16) | 1621832613486388159 | 0 10 94 108 112 132 184 190 252 258 310 330 334 348 432 442 | 182870000678 |
| SPT(16) | 1621832723195784391 | 0 18 48 78 90 166 168 196 222 250 252 328 340 370 400 418 | 292579396910 |
| STPT(10) | 1621832958339382421 | 0 2 6 8 48 50 90 92 96 98 | 527722994940 |
| TPT(14) | 1621833141365267261 | 0 2 30 32 60 62 96 98 168 170 186 188 198 200 | 710748879780 |
| STPT(10) | 1621833421033235087 | 0 2 60 62 72 74 84 86 144 146 | 990416847606 |
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