Prime p₀= 1031265342625464701 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 2 28 32 6 18 40 6 24 26 24 6 40 18 6 32 28 2 (?)
a_n: 0 2 30 62 68 86 126 132 156 182 206 212 252 270 276 308 336 338
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: 338
Found by: stoneageman
db: batch=76, k=18, 2 28 32 6 18 40 6 24 26

SPT(16)	1031264153549887547	0 2 6 36 104 134 156 252 254 350 372 402 470 500 504 506	-1189075577154
STPT(10)	1031264589074097611	0 2 30 32 78 80 126 128 156 158	-753551367090
STPT(10)	1031264810123181131	0 2 36 38 78 80 120 122 156 158	-532502283570
STPT(10)	1031264898566671799	0 2 18 20 30 32 42 44 60 62	-444058792902
STPT(10)	1031264998644711599	0 2 18 20 30 32 42 44 60 62	-343980753102
STPT(10)	1031265211321540751	0 2 6 8 48 50 90 92 96 98	-131303923950
STPT(10)	1031265381337412099	0 2 48 50 90 92 132 134 180 182	38711947398
SPT(16)	1031265608445825133	0 76 108 166 174 184 198 240 244 286 300 310 318 376 408 484	265820360432
SPT(16)	1031265763034172409	0 28 34 42 58 100 102 112 120 130 132 174 190 198 204 232	420408707708
SPT(16)	1031265873950205419	0 60 102 140 152 164 180 192 212 224 240 252 264 302 344 404	531324740718
SPT(16)	1031266080601379617	0 12 16 64 70 112 114 130 246 262 264 306 312 360 364 376	737975914916