Prime p₀= 630494248783104071 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 6 54 12 8 12 40 60 24 2 22 2 24 60 40 12 8 12 54 6 (?)
a_n: 0 6 60 72 80 92 132 192 216 218 240 242 266 326 366 378 386 398 452 458
All 20 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 458
derived by truncating larger tuple
Found by: xii5ku
db: batch=72, k=20, 6 54 12 8 12 40 60 24 2 22

TPT(12)	630494101968468161	0 2 48 50 90 92 186 188 216 218 240 242	-146814635910
TPT(12)	630494108793710969	0 2 12 14 42 44 120 122 132 134 168 170	-139989393102
TPT(12)	630494143607419829	0 2 78 80 90 92 138 140 150 152 168 170	-105175684242
TPT(12)	630494159856300119	0 2 90 92 162 164 210 212 312 314 492 494	-88926803952
TPT(12)	630494230317515519	0 2 18 20 102 104 132 134 138 140 228 230	-18465588552
SPT(22)	630494248783104061	0 10 16 70 82 90 102 142 202 226 228 250 252 276 336 376 388 396 408 462 468 478	-10
TPT(12)	630494274177044111	0 2 6 8 90 92 156 158 168 170 198 200	25393940040
TPT(12)	630494328067772321	0 2 18 20 30 32 60 62 306 308 336 338	79284668250
TPT(12)	630494348470814561	0 2 60 62 108 110 126 128 138 140 240 242	99687710490
SPT(16)	630494356543983721	0 12 48 136 142 208 216 226 252 262 270 336 342 430 466 478	107760879650
TPT(12)	630494361266661677	0 2 60 62 84 86 282 284 294 296 300 302	112483557606
TPT(14)	630494503216325987	0 2 42 44 120 122 252 254 330 332 444 446 462 464	254433221916