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Prime Tuple Database
Prime p0= 1981103220947655569 starts a
Symmetric tuple of 20 consecutive primes (SPT).
dn: 0 20 42 12 18 22 20 28 68 22 8 22 68 28 20 22 18 12 42 20 (?)
an: 0 20 62 74 92 114 134 162 230 252 260 282 350 378 398 420 438 450 492 512
All 20 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 512
Found by: Orange Kid
db: batch=80, k=20, 20 42 12 18 22 20 28 68 22 8
dn: 0 20 42 12 18 22 20 28 68 22 8 22 68 28 20 22 18 12 42 20 (?)
an: 0 20 62 74 92 114 134 162 230 252 260 282 350 378 398 420 438 450 492 512
All 20 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 512
Found by: Orange Kid
db: batch=80, k=20, 20 42 12 18 22 20 28 68 22 8
| SPT(16) | 1981102270898792221 | 0 22 36 42 78 112 136 166 192 222 246 280 316 322 336 358 | -950048863348 |
| SPT(16) | 1981102397138020213 | 0 16 24 46 58 124 136 166 168 198 210 276 288 310 318 334 | -823809635356 |
| STPT(10) | 1981102419701846261 | 0 2 6 8 18 20 30 32 36 38 | -801245809308 |
| STPT(10) | 1981102435609225109 | 0 2 18 20 30 32 42 44 60 62 | -785338430460 |
| SPT(16) | 1981102740218426287 | 0 30 40 52 106 114 162 172 204 214 262 270 324 336 346 376 | -480729229282 |
| STPT(10) | 1981103197151705909 | 0 2 42 44 60 62 78 80 120 122 | -23795949660 |
| STPT(10) | 1981103329705435097 | 0 2 30 32 42 44 54 56 84 86 | 108757779528 |
| SPT(16) | 1981104156884861413 | 0 18 40 96 118 138 186 208 216 238 286 306 328 384 406 424 | 935937205844 |
| STPT(10) | 1981104185881225961 | 0 2 6 8 48 50 90 92 96 98 | 964933570392 |
| STPT(10) | 1981104308534051927 | 0 2 30 32 72 74 114 116 144 146 | 1087586396358 |
| STPT(10) | 1981104433121967887 | 0 2 24 26 42 44 60 62 84 86 | 1212174312318 |
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