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Prime Tuple Database
Prime p0= 2221564180831502081 starts a
Symmetric tuple of 20 consecutive primes (SPT).
dn: 0 26 30 12 52 132 8 6 16 6 122 6 16 6 8 132 52 12 30 26 (?)
an: 0 26 56 68 120 252 260 266 282 288 410 416 432 438 446 578 630 642 672 698
All 20 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 698
Found by: Penguin
db: batch=81, k=20, 26 30 12 52 132 8 6 16 6 122
dn: 0 26 30 12 52 132 8 6 16 6 122 6 16 6 8 132 52 12 30 26 (?)
an: 0 26 56 68 120 252 260 266 282 288 410 416 432 438 446 578 630 642 672 698
All 20 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 698
Found by: Penguin
db: batch=81, k=20, 26 30 12 52 132 8 6 16 6 122
| STPT(10) | 2221562201543548469 | 0 2 48 50 90 92 132 134 180 182 | -1979287953612 |
| STPT(10) | 2221563118033508021 | 0 2 48 50 108 110 168 170 216 218 | -1062797994060 |
| SPT(16) | 2221563645418350881 | 0 42 60 68 72 116 120 156 182 218 222 266 270 278 296 338 | -535413151200 |
| STPT(10) | 2221563858408948869 | 0 2 12 14 30 32 48 50 60 62 | -322422553212 |
| STPT(10) | 2221563940712963051 | 0 2 6 8 18 20 30 32 36 38 | -240118539030 |
| STPT(10) | 2221563996180319499 | 0 2 42 44 60 62 78 80 120 122 | -184651182582 |
| STPT(10) | 2221564452459528857 | 0 2 30 32 102 104 174 176 204 206 | 271628026776 |
| STPT(10) | 2221564516558543487 | 0 2 90 92 102 104 114 116 204 206 | 335727041406 |
| STPT(10) | 2221564965282348209 | 0 2 18 20 30 32 42 44 60 62 | 784450846128 |
| SPT(16) | 2221565011301646343 | 0 28 34 48 54 64 78 100 144 166 180 190 196 210 216 244 | 830470144262 |
| STPT(10) | 2221565617156546667 | 0 2 30 32 42 44 54 56 84 86 | 1436325044586 |
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