Prime p₀= 2618328712883938907 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 20 6 4 2 22 8 48 6 64 6 48 8 22 2 4 6 20 (?)
a_n: 0 20 26 30 32 54 62 110 116 180 186 234 242 264 266 270 276 296
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: 296
Found by: SEARCHER
db: batch=82, k=18, 20 6 4 2 22 8 48 6 64

STPT(10)	2618327299670320487	0 2 12 14 72 74 132 134 144 146	-1413213618420
SPT(16)	2618327461182165779	0 2 12 48 72 78 128 132 140 144 194 200 224 260 270 272	-1251701773128
SPT(16)	2618328062922980581	0 10 12 18 40 82 118 138 160 180 216 258 280 286 288 298	-649960958326
STPT(10)	2618328290723875979	0 2 18 20 30 32 42 44 60 62	-422160062928
SPT(16)	2618328303091787863	0 10 36 76 120 148 154 168 286 300 306 334 378 418 444 454	-409792151044
STPT(10)	2618328343266053357	0 2 30 32 60 62 90 92 120 122	-369617885550
STPT(10)	2618328972538080647	0 2 24 26 42 44 60 62 84 86	259654141740
STPT(10)	2618329331860333547	0 2 30 32 42 44 54 56 84 86	618976394640
STPT(10)	2618329432998210689	0 2 18 20 30 32 42 44 60 62	720114271782
SPT(16)	2618329893371489729	0 18 20 54 78 90 92 108 134 150 152 164 188 222 224 242	1180487550822
STPT(10)	2618330472832755209	0 2 42 44 90 92 138 140 180 182	1759948816302