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Prime Tuple Database
Prime p0= 1991274589946777453 starts a
Symmetric tuple of 18 consecutive primes (SPT).
dn: 0 26 4 6 48 2 10 18 54 38 54 18 10 2 48 6 4 26 (?)
an: 0 26 30 36 84 86 96 114 168 206 260 278 288 290 338 344 348 374
All 18 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 374
Found by: [AF>Amis des Lapins] Phil1966
db: batch=80, k=18, 26 4 6 48 2 10 18 54 38
dn: 0 26 4 6 48 2 10 18 54 38 54 18 10 2 48 6 4 26 (?)
an: 0 26 30 36 84 86 96 114 168 206 260 278 288 290 338 344 348 374
All 18 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 374
Found by: [AF>Amis des Lapins] Phil1966
db: batch=80, k=18, 26 4 6 48 2 10 18 54 38
| STPT(10) | 1991272984805771669 | 0 2 30 32 60 62 90 92 120 122 | -1605141005784 |
| SPT(16) | 1991273423425469941 | 0 6 36 76 108 118 162 190 198 226 270 280 312 352 382 388 | -1166521307512 |
| STPT(10) | 1991273766765525269 | 0 2 18 20 30 32 42 44 60 62 | -823181252184 |
| SPT(16) | 1991273876073711013 | 0 46 78 144 148 154 196 204 280 288 330 336 340 406 438 484 | -713873066440 |
| STPT(10) | 1991274304616297609 | 0 2 18 20 30 32 42 44 60 62 | -285330479844 |
| STPT(10) | 1991274561302728319 | 0 2 48 50 60 62 72 74 120 122 | -28644049134 |
| STPT(10) | 1991274652244187839 | 0 2 12 14 90 92 168 170 180 182 | 62297410386 |
| STPT(10) | 1991274707125249277 | 0 2 30 32 42 44 54 56 84 86 | 117178471824 |
| SPT(16) | 1991275255556652257 | 0 20 36 54 62 86 126 156 230 260 300 324 332 350 366 386 | 665609874804 |
| STPT(10) | 1991275263337638737 | 0 2 30 32 42 44 54 56 84 86 | 673390861284 |
| SPT(16) | 1991275397330110379 | 0 12 20 60 122 158 180 182 228 230 252 288 350 390 398 410 | 807383332926 |
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