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Prime Tuple Database
Prime p0= 21048654278196509 starts a
Symmetric tuple of 20 consecutive primes (SPT).
dn: 0 2 16 42 30 18 2 40 20 4 74 4 20 40 2 18 30 42 16 2 (?)
an: 0 2 18 60 90 108 110 150 170 174 248 252 272 312 314 332 362 404 420 422
All 20 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 422
Found by: Egon olsen
db: batch=62, k=20, 2 16 42 30 18 2 40 20 4 74
dn: 0 2 16 42 30 18 2 40 20 4 74 4 20 40 2 18 30 42 16 2 (?)
an: 0 2 18 60 90 108 110 150 170 174 248 252 272 312 314 332 362 404 420 422
All 20 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 422
Found by: Egon olsen
db: batch=62, k=20, 2 16 42 30 18 2 40 20 4 74
| TPT(12) | 21048636201712727 | 0 2 102 104 150 152 180 182 210 212 234 236 | -18076483782 |
| SPT(14) | 21048639095086501 | 0 10 12 40 52 66 70 78 82 96 108 136 138 148 | -15183110008 |
| SPT(14) | 21048648667013339 | 0 38 54 78 152 164 180 182 198 210 284 308 324 362 | -5611183170 |
| SPT(14) | 21048650672403077 | 0 6 72 176 204 224 234 272 282 302 330 434 500 506 | -3605793432 |
| SPT(14) | 21048651403262389 | 0 18 22 48 84 102 114 118 130 148 184 210 214 232 | -2874934120 |
| SPT(14) | 21048653318337793 | 0 4 58 88 114 126 148 186 208 220 246 276 330 334 | -959858716 |
| SPT(14) | 21048656356145771 | 0 66 122 140 150 156 168 170 182 188 198 216 272 338 | 2077949262 |
| SPT(14) | 21048665285806979 | 0 2 20 72 80 90 120 134 164 174 182 234 252 254 | 11007610470 |
| SPT(14) | 21048680727702337 | 0 10 66 106 120 132 136 180 184 196 210 250 306 316 | 26449505828 |
| TPT(12) | 21048690066168377 | 0 2 60 62 84 86 90 92 114 116 174 176 | 35787971868 |
| STPT(12) | 21048690066168377 | 0 2 60 62 84 86 90 92 114 116 174 176 | 35787971868 |
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