Prime p₀= 981428143180360487 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 14 22 8 60 6 10 6 6 2 6 6 10 6 60 8 22 14 (?)
a_n: 0 14 36 44 104 110 120 126 132 134 140 146 156 162 222 230 252 266
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: 266
Found by: stoneageman
db: batch=76, k=18, 14 22 8 60 6 10 6 6 2

STPT(10)	981427643198723489	0 2 18 20 30 32 42 44 60 62	-499981636998
STPT(10)	981427670160887639	0 2 18 20 30 32 42 44 60 62	-473019472848
SPT(16)	981427711571670889	0 12 42 52 82 148 208 210 250 252 312 378 408 418 448 460	-431608689598
SPT(16)	981427715573609179	0 12 40 64 78 82 84 102 130 148 150 154 168 192 220 232	-427606751308
SPT(16)	981427720049076259	0 22 88 100 178 198 220 232 270 282 304 324 402 414 480 502	-423131284228
SPT(16)	981427772211958193	0 14 30 44 96 108 140 146 198 204 236 248 300 314 330 344	-370968402294
STPT(10)	981428291960819957	0 2 42 44 72 74 102 104 144 146	148780459470
SPT(16)	981428298546294437	0 20 24 26 72 126 132 242 264 374 380 434 480 482 486 506	155365933950
STPT(10)	981428429534421899	0 2 18 20 30 32 42 44 60 62	286354061412
SPT(16)	981428499140880361	0 48 90 106 126 162 240 256 312 328 406 442 462 478 520 568	355960519874
SPT(16)	981428717247637927	0 16 52 72 100 102 130 132 154 156 184 186 214 234 270 286	574067277440