Prime p₀= 1539906103216764607 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 16 26 18 10 30 6 20 6 82 6 20 6 30 10 18 26 16 (?)
a_n: 0 16 42 60 70 100 106 126 132 214 220 240 246 276 286 304 330 346
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: 346
Found by: crashtech
db: batch=78, k=18, 16 26 18 10 30 6 20 6 82

SPT(16)	1539905239815269707	0 34 64 72 84 90 100 120 154 174 184 190 202 210 240 274	-863401494900
SPT(16)	1539905287029966523	0 60 94 130 150 174 274 280 420 426 526 550 570 606 640 700	-816186798084
TPT(14)	1539905803832515121	0 2 6 8 30 32 60 62 78 80 120 122 156 158	-299384249486
SPT(16)	1539905833509679057	0 24 52 90 94 100 102 162 184 244 246 252 256 294 322 346	-269707085550
STPT(10)	1539905936284673051	0 2 6 8 48 50 90 92 96 98	-166932091556
SPT(16)	1539906103135545601	0 22 36 46 112 162 196 208 210 222 256 306 372 382 396 418	-81219006
STPT(10)	1539906203190529841	0 2 6 8 18 20 30 32 36 38	99973765234
STPT(10)	1539906483608559527	0 2 24 26 42 44 60 62 84 86	380391794920
SPT(16)	1539906815872961111	0 8 36 38 56 72 80 90 158 168 176 192 210 212 240 248	712656196504
STPT(10)	1539906828386850359	0 2 42 44 60 62 78 80 120 122	725170085752
STPT(10)	1539906853498606907	0 2 30 32 72 74 114 116 144 146	750281842300