Prime p₀= 930722178037617521 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 6 20 30 22 90 12 8 18 16 18 8 12 90 22 30 20 6 (?)
a_n: 0 6 26 56 78 168 180 188 206 222 240 248 260 350 372 402 422 428
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: 428
Found by: paulteo
db: batch=76, k=18, 6 20 30 22 90 12 8 18 16

SPT(16)	930721377083210957	0 12 14 24 44 56 80 116 150 186 210 222 242 252 254 266	-800954406564
SPT(16)	930721429861452979	0 12 58 60 78 84 114 120 172 178 208 214 232 234 280 292	-748176164542
STPT(10)	930721501661747987	0 2 42 44 72 74 102 104 144 146	-676375869534
SPT(16)	930721572188607989	0 54 104 114 122 140 180 192 230 242 282 300 308 318 368 422	-605849009532
SPT(16)	930721745776426781	0 38 50 56 86 90 156 240 308 392 458 462 492 498 510 548	-432261190740
SPT(16)	930721863742058807	0 6 20 42 102 116 144 156 170 182 210 224 284 306 320 326	-314295558714
SPT(16)	930722276548702769	0 18 20 42 48 62 74 84 98 108 120 134 140 162 164 182	98511085248
STPT(10)	930722696448975887	0 2 30 32 72 74 114 116 144 146	518411358366
TPT(14)	930722849187719171	0 2 36 38 108 110 150 152 180 182 210 212 258 260	671150101650
SPT(16)	930722892282002069	0 12 18 38 54 60 92 98 144 150 182 188 204 224 230 242	714244384548
SPT(16)	930723307135801379	0 2 12 54 62 104 128 182 210 264 288 330 338 380 390 392	1129098183858