Prime p₀= 1953988364922730349 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 2 12 78 28 12 36 6 30 14 30 6 36 12 28 78 12 2 (?)
a_n: 0 2 14 92 120 132 168 174 204 218 248 254 290 302 330 408 420 422
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: 422
Found by: Landjunge
db: batch=80, k=18, 2 12 78 28 12 36 6 30 14

SPT(16)	1953986772232690589	0 8 60 72 78 80 122 158 294 330 372 374 380 392 444 452	-1592690039760
STPT(10)	1953988003084813469	0 2 12 14 90 92 168 170 180 182	-361837916880
SPT(16)	1953988008957358799	0 90 110 120 132 140 152 162 200 210 222 230 242 252 272 362	-355965371550
SPT(16)	1953988115832127043	0 60 114 170 210 246 314 324 326 336 404 440 480 536 590 650	-249090603306
SPT(16)	1953988185892998001	0 36 40 70 112 172 190 220 222 252 270 330 372 402 406 442	-179029732348
SPT(16)	1953988237236561437	0 6 66 86 90 114 126 200 216 290 302 326 330 350 410 416	-127686168912
SPT(16)	1953988945296750451	0 22 42 48 52 70 118 148 150 180 228 246 250 256 276 298	580374020102
STPT(10)	1953989086313358761	0 2 6 8 18 20 30 32 36 38	721390628412
STPT(12)	1953989407038294629	0 2 12 14 42 44 78 80 108 110 120 122	1042115564280
SPT(16)	1953989459424822553	0 4 30 34 66 70 100 108 136 144 174 178 210 214 240 244	1094502092204
SPT(18)	1953989623001561611	0 6 16 22 42 76 100 120 126 196 202 222 246 280 300 306 316 322	1258078831262