Prime p₀= 1961234260034407217 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 2 28 30 2 22 12 8 36 16 36 8 12 22 2 30 28 2 (?)
a_n: 0 2 30 60 62 84 96 104 140 156 192 200 212 234 236 266 294 296
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: vinn@[CNT]
db: batch=80, k=18, 2 28 30 2 22 12 8 36 16

STPT(10)	1961233366622515757	0 2 90 92 102 104 114 116 204 206	-893411891460
STPT(10)	1961233611665974727	0 2 54 56 72 74 90 92 144 146	-648368432490
SPT(16)	1961233619402810861	0 86 96 110 120 206 212 218 240 246 252 338 348 362 372 458	-640631596356
STPT(10)	1961233902778405007	0 2 30 32 42 44 54 56 84 86	-357256002210
SPT(16)	1961233910948790547	0 6 16 42 60 76 114 136 150 172 210 226 244 270 280 286	-349085616670
SPT(16)	1961233922590189673	0 24 38 48 84 96 98 104 150 156 158 170 206 216 230 254	-337444217544
SPT(16)	1961234297833434961	0 28 36 60 102 126 130 168 190 228 232 256 298 322 330 358	37799027744
SPT(16)	1961234321709683807	0 2 20 42 44 62 80 140 156 216 234 252 254 276 294 296	61675276590
SPT(16)	1961235053852787523	0 6 18 46 180 196 208 210 304 306 318 334 468 496 508 514	793818380306
SPT(16)	1961236130197349351	0 2 36 80 90 132 140 146 156 162 170 212 222 266 300 302	1870162942134
STPT(10)	1961236446052954529	0 2 18 20 30 32 42 44 60 62	2186018547312