Prime p₀= 2166694216263945283 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 6 10 8 70 42 42 2 6 22 6 2 42 42 70 8 10 6 (?)
a_n: 0 6 16 24 94 136 178 180 186 208 214 216 258 300 370 378 388 394
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: 394
Found by: [SG-FC] hl
db: batch=81, k=18, 6 10 8 70 42 42 2 6 22

SPT(16)	2166693245566418287	0 6 90 94 120 130 136 196 210 270 276 286 312 316 400 406	-970697526996
STPT(10)	2166693496930606991	0 2 6 8 48 50 90 92 96 98	-719333338292
SPT(16)	2166693554527939807	0 10 82 90 112 132 154 184 192 222 244 264 286 294 366 376	-661736005476
SPT(16)	2166693718151189503	0 16 30 40 196 238 268 330 496 558 588 630 786 796 810 826	-498112755780
STPT(12)	2166693786500226119	0 2 12 14 42 44 90 92 120 122 132 134	-429763719164
STPT(10)	2166693843527251679	0 2 12 14 90 92 168 170 180 182	-372736693604
SPT(16)	2166694581117017087	0 12 42 56 80 90 110 122 234 246 266 276 300 314 344 356	364853071804
SPT(16)	2166695099001499151	0 26 50 56 68 122 138 152 276 290 306 360 372 378 402 428	882737553868
STPT(10)	2166695106956230967	0 2 30 32 42 44 54 56 84 86	890692285684
STPT(10)	2166695444453597537	0 2 30 32 42 44 54 56 84 86	1228189652254
SPT(16)	2166695932733484767	0 2 6 24 72 84 90 192 314 416 422 434 482 500 504 506	1716469539484