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Prime Tuple Database
Prime p0= 1991386225474978193 starts a
Symmetric tuple of 18 consecutive primes (SPT).
dn: 0 44 10 6 38 40 20 22 20 34 20 22 20 40 38 6 10 44 (?)
an: 0 44 54 60 98 138 158 180 200 234 254 276 296 336 374 380 390 434
All 18 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 434
Found by: [AF>Amis des Lapins] Phil1966
db: batch=80, k=18, 44 10 6 38 40 20 22 20 34
dn: 0 44 10 6 38 40 20 22 20 34 20 22 20 40 38 6 10 44 (?)
an: 0 44 54 60 98 138 158 180 200 234 254 276 296 336 374 380 390 434
All 18 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 434
Found by: [AF>Amis des Lapins] Phil1966
db: batch=80, k=18, 44 10 6 38 40 20 22 20 34
| STPT(10) | 1991384601436340729 | 0 2 12 14 90 92 168 170 180 182 | -1624038637464 |
| STPT(10) | 1991384622440977637 | 0 2 30 32 42 44 54 56 84 86 | -1603034000556 |
| STPT(10) | 1991385156920149787 | 0 2 24 26 42 44 60 62 84 86 | -1068554828406 |
| SPT(16) | 1991385246530831659 | 0 22 48 78 138 144 244 280 342 378 478 484 544 574 600 622 | -978944146534 |
| TPT(14) | 1991385253394060201 | 0 2 60 62 168 170 198 200 228 230 240 242 270 272 | -972080917992 |
| SPT(16) | 1991385555631754567 | 0 26 50 54 120 164 236 264 332 360 432 476 542 546 570 596 | -669843223626 |
| STPT(10) | 1991386290297653069 | 0 2 42 44 60 62 78 80 120 122 | 64822674876 |
| STPT(10) | 1991386888980100457 | 0 2 24 26 42 44 60 62 84 86 | 663505122264 |
| STPT(10) | 1991387067924960029 | 0 2 18 20 60 62 102 104 120 122 | 842449981836 |
| TPT(14) | 1991387186692134557 | 0 2 54 56 60 62 72 74 102 104 132 134 174 176 | 961217156364 |
| SPT(16) | 1991387785140107027 | 0 20 50 56 86 90 104 116 174 186 200 204 234 240 270 290 | 1559665128834 |
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