Prime p₀= 2327472877363368877 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 6 10 26 30 4 66 30 72 38 72 30 66 4 30 26 10 6 (?)
a_n: 0 6 16 42 72 76 142 172 244 282 354 384 450 454 484 510 520 526
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: 526
Found by: vinn@[CNT]
db: batch=81, k=18, 6 10 26 30 4 66 30 72 38

SPT(16)	2327470507759473667	0 6 54 70 106 160 204 244 336 376 420 474 510 526 574 580	-2369603895210
SPT(16)	2327470703390935573	0 18 48 70 76 118 136 150 154 168 186 228 234 256 286 304	-2173972433304
SPT(16)	2327470795430956927	0 16 36 66 72 90 96 136 180 220 226 244 250 280 300 316	-2081932411950
SPT(16)	2327470881725717153	0 60 98 104 138 158 174 180 188 194 210 230 264 270 308 368	-1995637651724
SPT(16)	2327471473852710631	0 6 18 36 42 76 90 102 106 118 132 166 172 190 202 208	-1403510658246
STPT(10)	2327472212090598119	0 2 42 44 180 182 318 320 360 362	-665272770758
SPT(16)	2327473427376152969	0 20 68 92 144 180 194 222 260 288 302 338 390 414 462 482	550012784092
SPT(16)	2327474341719521837	0 6 12 14 50 56 126 134 252 260 330 336 372 374 380 386	1464356152960
SPT(16)	2327474595779218507	0 4 70 136 142 166 172 186 220 234 240 264 270 336 402 406	1718415849630
STPT(10)	2327474886470448887	0 2 12 14 42 44 72 74 84 86	2009107080010
SPT(16)	2327475422099533253	0 36 44 56 140 158 176 186 188 198 216 234 318 330 338 374	2544736164376