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Prime Tuple Database
Prime p0= 1991612299369749571 starts a
Symmetric tuple of 18 consecutive primes (SPT).
dn: 0 6 22 20 12 22 38 12 30 4 30 12 38 22 12 20 22 6 (?)
an: 0 6 28 48 60 82 120 132 162 166 196 208 246 268 280 300 322 328
All 18 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 328
Found by: [AF>Amis des Lapins] Phil1966
db: batch=80, k=18, 6 22 20 12 22 38 12 30 4
dn: 0 6 22 20 12 22 38 12 30 4 30 12 38 22 12 20 22 6 (?)
an: 0 6 28 48 60 82 120 132 162 166 196 208 246 268 280 300 322 328
All 18 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 328
Found by: [AF>Amis des Lapins] Phil1966
db: batch=80, k=18, 6 22 20 12 22 38 12 30 4
| STPT(10) | 1991610208498936547 | 0 2 30 32 42 44 54 56 84 86 | -2090870813024 |
| STPT(12) | 1991610694894777007 | 0 2 42 44 60 62 102 104 120 122 162 164 | -1604474972564 |
| STPT(10) | 1991611279249056767 | 0 2 30 32 42 44 54 56 84 86 | -1020120692804 |
| TPT(14) | 1991611462206519731 | 0 2 30 32 48 50 90 92 180 182 186 188 210 212 | -837163229840 |
| SPT(16) | 1991611890261365003 | 0 8 38 56 78 108 114 128 156 170 176 206 228 246 276 284 | -409108384568 |
| STPT(10) | 1991611943653711151 | 0 2 90 92 108 110 126 128 216 218 | -355716038420 |
| STPT(10) | 1991612613033903269 | 0 2 12 14 90 92 168 170 180 182 | 313664153698 |
| SPT(16) | 1991612637244659853 | 0 6 28 34 40 88 130 166 168 204 246 294 300 306 328 334 | 337874910282 |
| SPT(16) | 1991612933746878943 | 0 28 36 48 70 78 114 120 154 160 196 204 226 238 246 274 | 634377129372 |
| STPT(10) | 1991613027665749529 | 0 2 18 20 30 32 42 44 60 62 | 728295999958 |
| STPT(10) | 1991613086118222797 | 0 2 24 26 42 44 60 62 84 86 | 786748473226 |
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