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Prime Tuple Database
Prime p0= 1991383547363203663 starts a
Symmetric tuple of 18 consecutive primes (SPT).
dn: 0 28 18 50 30 42 18 58 6 14 6 58 18 42 30 50 18 28 (?)
an: 0 28 46 96 126 168 186 244 250 264 270 328 346 388 418 468 486 514
All 18 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 514
Found by: [AF>Amis des Lapins] Phil1966
db: batch=80, k=18, 28 18 50 30 42 18 58 6 14
dn: 0 28 18 50 30 42 18 58 6 14 6 58 18 42 30 50 18 28 (?)
an: 0 28 46 96 126 168 186 244 250 264 270 328 346 388 418 468 486 514
All 18 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 514
Found by: [AF>Amis des Lapins] Phil1966
db: batch=80, k=18, 28 18 50 30 42 18 58 6 14
| STPT(10) | 1991382261381117347 | 0 2 12 14 42 44 72 74 84 86 | -1285982086316 |
| TPT(14) | 1991382354509544587 | 0 2 24 26 42 44 192 194 222 224 294 296 414 416 | -1192853659076 |
| SPT(16) | 1991383011526679657 | 0 12 164 174 242 276 314 350 486 522 560 594 662 672 824 836 | -535836524006 |
| SPT(16) | 1991383167578767363 | 0 34 66 114 120 136 178 196 198 216 258 274 280 328 360 394 | -379784436300 |
| SPT(16) | 1991383440136182373 | 0 58 64 66 88 94 150 156 178 184 240 246 268 270 276 334 | -107227021290 |
| TPT(14) | 1991383543158998099 | 0 2 12 14 18 20 42 44 72 74 102 104 168 170 | -4204205564 |
| TPT(14) | 1991383583856547367 | 0 2 54 56 102 104 114 116 144 146 180 182 210 212 | 36493343704 |
| SPT(18) | 1991383779195647113 | 0 18 30 88 90 118 138 180 190 264 274 316 336 364 366 424 436 454 | 231832443450 |
| SPT(16) | 1991383963563736789 | 0 28 42 48 82 144 172 192 280 300 328 390 424 430 444 472 | 416200533126 |
| SPT(16) | 1991384119599687187 | 0 4 36 42 82 84 124 130 156 162 202 204 244 250 282 286 | 572236483524 |
| STPT(10) | 1991384160752508419 | 0 2 18 20 30 32 42 44 60 62 | 613389304756 |
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