Prime p₀= 1251109119529394677 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 76 14 10 14 18 12 28 12 32 34 32 12 28 12 18 14 10 14 76 (?)
a_n: 0 76 90 100 114 132 144 172 184 216 250 282 294 322 334 352 366 376 390 466
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: 466
Found by: HenkM
db: batch=77, k=20, 76 14 10 14 18 12 28 12 32 34

STPT(10)	1251107895182860469	0 2 18 20 30 32 42 44 60 62	-1224346534208
SPT(16)	1251108239906525491	0 12 72 88 108 130 168 196 252 280 318 340 360 376 436 448	-879622869186
SPT(16)	1251108895938024701	0 8 62 68 78 96 120 152 156 188 212 230 240 246 300 308	-223591369976
SPT(16)	1251108897391714211	0 6 32 56 60 90 110 126 152 168 188 218 222 246 272 278	-222137680466
STPT(10)	1251109018016852549	0 2 42 44 60 62 78 80 120 122	-101512542128
SPT(16)	1251109030756423469	0 8 80 92 140 152 182 234 278 330 360 372 420 432 504 512	-88772971208
SPT(16)	1251109305272454401	0 2 8 56 72 120 126 210 218 302 308 356 372 420 426 428	185743059724
STPT(10)	1251109702100217929	0 2 12 14 30 32 48 50 60 62	582570823252
SPT(16)	1251109882506811057	0 34 42 76 82 96 126 132 184 190 220 234 240 274 282 316	762977416380
SPT(16)	1251110034282518281	0 22 60 70 72 76 88 148 180 240 252 256 258 268 306 328	914753123604
SPT(16)	1251110213628076909	0 18 28 42 60 70 172 232 258 318 420 430 448 462 472 490	1094098682232