Prime p₀= 2168384840667345893 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 14 10 2 10 12 12 6 54 44 54 6 12 12 10 2 10 14 (?)
a_n: 0 14 24 26 36 48 60 66 120 164 218 224 236 248 258 260 270 284
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: 284
Found by: Penguin
db: batch=81, k=18, 14 10 2 10 12 12 6 54 44

STPT(10)	2168383795957567127	0 2 30 32 60 62 90 92 120 122	-1044709778766
TPT(14)	2168383834154096621	0 2 18 20 60 62 126 128 150 152 168 170 186 188	-1006513249272
SPT(18)	2168384087482467401	0 8 26 68 72 78 86 92 120 128 156 162 170 176 180 222 240 248	-753184878492
SPT(16)	2168384404341891097	0 10 64 76 84 90 94 120 160 186 190 196 204 216 270 280	-436325454796
SPT(16)	2168384570476577459	0 42 62 68 74 144 158 174 248 264 278 348 354 360 380 422	-270190768434
SPT(16)	2168384732138925283	0 46 54 84 100 144 174 196 258 280 310 354 370 400 408 454	-108528420610
SPT(16)	2168385036256842101	0 12 56 72 80 108 158 168 350 360 410 438 446 462 506 518	195589496208
STPT(10)	2168385720601565219	0 2 18 20 30 32 42 44 60 62	879934219326
STPT(10)	2168385853459975319	0 2 42 44 60 62 78 80 120 122	1012792629426
TPT(14)	2168386458419887817	0 2 12 14 102 104 114 116 144 146 234 236 270 272	1617752541924
SPT(16)	2168386469715590209	0 42 60 120 138 150 154 238 264 348 352 364 382 442 460 502	1629048244316