Prime p₀= 2157995130120709651 starts a Symmetric tuple of 13 consecutive primes (SPT).
d_n: 0 30 48 90 30 12 18 18 12 30 90 48 30 (?)
a_n: 0 30 78 168 198 210 228 246 258 288 378 426 456
All 13 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 456
Found by: Landjunge
db: batch=81, k=13, 30 48 90 30 12 18

SPT(16)	2157994051870472887	0 10 22 36 64 66 112 114 142 144 190 192 220 234 246 256	-1078250236764
SPT(16)	2157994571823506881	0 22 58 78 106 126 180 192 196 208 262 282 310 330 366 388	-558297202770
STPT(10)	2157994823564519897	0 2 12 14 42 44 72 74 84 86	-306556189754
SPT(16)	2157994870889533877	0 6 14 26 50 92 102 104 222 224 234 276 300 312 320 326	-259231175774
STPT(12)	2157994942842982469	0 2 30 32 42 44 78 80 90 92 120 122	-187277727182
STPT(10)	2157995019176796419	0 2 42 44 90 92 138 140 180 182	-110943913232
SPT(16)	2157995373633679633	0 16 18 28 30 48 70 84 130 144 166 184 186 196 198 214	243512969982
STPT(10)	2157995527927860461	0 2 36 38 78 80 120 122 156 158	397807150810
SPT(16)	2157995837872778549	0 20 74 84 92 114 132 144 158 170 188 210 218 228 282 302	707752068898
STPT(10)	2157996146320327631	0 2 90 92 168 170 246 248 336 338	1016199617980
SPT(16)	2157996280305840547	0 66 72 112 136 250 286 292 354 360 396 510 534 574 580 646	1150185130896