Prime p₀= 2224273679188140563 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 8 10 50 10 32 30 16 2 40 2 16 30 32 10 50 10 8 (?)
a_n: 0 8 18 68 78 110 140 156 158 198 200 216 246 278 288 338 348 356
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: 356
Found by: Penguin
db: batch=81, k=18, 8 10 50 10 32 30 16 2 40

TPT(14)	2224272444243676571	0 2 90 92 120 122 216 218 288 290 318 320 336 338	-1234944463992
STPT(10)	2224272528409152209	0 2 18 20 30 32 42 44 60 62	-1150778988354
STPT(10)	2224273401687820451	0 2 66 68 138 140 210 212 276 278	-277500320112
SPT(16)	2224273406776958137	0 30 34 82 100 102 112 124 132 144 154 156 174 222 226 256	-272411182426
STPT(10)	2224273462179820949	0 2 42 44 60 62 78 80 120 122	-217008319614
SPT(16)	2224273515650321831	0 26 48 78 90 150 216 276 320 380 446 506 518 548 570 596	-163537818732
STPT(10)	2224274376917122631	0 2 6 8 48 50 90 92 96 98	697728982068
STPT(10)	2224275410469374159	0 2 18 20 30 32 42 44 60 62	1731281233596
SPT(16)	2224275611247444149	0 2 68 72 84 132 134 140 162 168 170 218 230 234 300 302	1932059303586
SPT(16)	2224275775362310847	0 20 42 80 86 90 132 210 212 290 332 336 342 380 402 422	2096174170284
STPT(10)	2224275933422068649	0 2 12 14 30 32 48 50 60 62	2254233928086