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Prime Tuple Database
Prime p0= 1991302920790449241 starts a
Symmetric tuple of 18 consecutive primes (SPT).
dn: 0 10 42 18 6 30 14 6 22 32 22 6 14 30 6 18 42 10 (?)
an: 0 10 52 70 76 106 120 126 148 180 202 208 222 252 258 276 318 328
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, 10 42 18 6 30 14 6 22 32
dn: 0 10 42 18 6 30 14 6 22 32 22 6 14 30 6 18 42 10 (?)
an: 0 10 52 70 76 106 120 126 148 180 202 208 222 252 258 276 318 328
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, 10 42 18 6 30 14 6 22 32
| STPT(10) | 1991302461592866449 | 0 2 18 20 30 32 42 44 60 62 | -459197582792 |
| SPT(16) | 1991302508785540633 | 0 40 70 148 154 160 166 174 190 198 204 210 216 294 324 364 | -412004908608 |
| STPT(10) | 1991302583092747499 | 0 2 42 44 120 122 198 200 240 242 | -337697701742 |
| SPT(16) | 1991302626739216577 | 0 30 44 50 80 134 140 182 234 276 282 336 366 372 386 416 | -294051232664 |
| SPT(16) | 1991302747599668029 | 0 22 28 42 60 64 88 130 192 234 258 262 280 294 300 322 | -173190781212 |
| TPT(14) | 1991302889787839477 | 0 2 42 44 54 56 132 134 174 176 222 224 264 266 | -31002609764 |
| STPT(10) | 1991303205977969711 | 0 2 36 38 78 80 120 122 156 158 | 285187520470 |
| STPT(10) | 1991304136454509307 | 0 2 12 14 72 74 132 134 144 146 | 1215664060066 |
| TPT(14) | 1991304263463017507 | 0 2 12 14 90 92 102 104 114 116 144 146 180 182 | 1342672568266 |
| SPT(16) | 1991304426000586421 | 0 18 96 98 110 126 140 156 170 186 200 216 228 230 308 326 | 1505210137180 |
| STPT(10) | 1991305474651720499 | 0 2 18 20 30 32 42 44 60 62 | 2553861271258 |
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