Prime p₀= 2642603761171748971 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 22 6 8 6 6 12 10 2 4 2 10 12 6 6 8 6 22 (?)
a_n: 0 22 28 36 42 48 60 70 72 76 78 88 100 106 112 120 126 148
All 18 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 148
Found by: biodoc
db: batch=82, k=18, 22 6 8 6 6 12 10 2 4

STPT(10)	2642601812240628809	0 2 18 20 30 32 42 44 60 62	-1948931120162
SPT(16)	2642601847733317487	0 14 20 24 72 96 140 212 234 306 350 374 422 426 432 446	-1913438431484
SPT(16)	2642602534942071083	0 18 54 56 68 74 104 116 198 210 240 246 258 260 296 314	-1226229677888
STPT(10)	2642602930453512239	0 2 12 14 90 92 168 170 180 182	-830718236732
STPT(10)	2642603344724775371	0 2 30 32 60 62 90 92 120 122	-416446973600
SPT(16)	2642603575262310299	0 2 84 90 92 122 134 162 182 210 222 252 254 260 342 344	-185909438672
STPT(12)	2642603941636155191	0 2 36 38 48 50 78 80 90 92 126 128	180464406220
SPT(16)	2642603952738650947	0 30 34 40 70 82 90 180 184 274 282 294 324 330 334 364	191566901976
SPT(16)	2642604665085074671	0 36 48 132 216 226 232 270 298 336 342 352 436 520 532 568	903913325700
STPT(10)	2642604947408067527	0 2 54 56 72 74 90 92 144 146	1186236318556
SPT(16)	2642604969647056313	0 6 20 30 84 86 146 158 186 198 258 260 314 324 338 344	1208475307342