Prime p₀= 2921231435554256399 starts a Symmetric tuple of 12 consecutive primes, which form 6 twin primes (STPT).
d_n: 0 2 76 2 70 2 16 2 70 2 76 2 (?)
a_n: 0 2 78 80 150 152 168 170 240 242 318 320
All 12 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 320
Found by: [SG-FC] hl
db: batch=82, k=12, 2 76 2 70 2 16

TPT(14)	2921228807432369351	0 2 30 32 78 80 108 110 126 128 150 152 156 158	-2628121887048
STPT(10)	2921229323454404759	0 2 18 20 30 32 42 44 60 62	-2112099851640
SPT(16)	2921229975879690029	0 48 90 114 144 150 158 218 324 384 392 398 428 452 494 542	-1459674566370
TPT(14)	2921230469243977589	0 2 12 14 18 20 30 32 150 152 210 212 252 254	-966310278810
SPT(16)	2921231148761376691	0 10 16 48 60 136 148 168 220 240 252 328 340 372 378 388	-286792879708
SPT(16)	2921231238554484607	0 6 30 42 64 82 96 124 192 220 234 252 274 286 310 316	-196999771792
SPT(16)	2921231443572008689	0 22 24 30 42 114 118 160 192 234 238 310 322 328 330 352	8017752290
SPT(16)	2921232364465077763	0 18 58 88 90 126 174 198 256 280 328 364 366 396 436 454	928910821364
STPT(10)	2921233167361356929	0 2 48 50 90 92 132 134 180 182	1731807100530
SPT(16)	2921233246754300167	0 34 42 106 130 156 172 186 340 354 370 396 420 484 492 526	1811200043768
STPT(10)	2921233377777386897	0 2 30 32 42 44 54 56 84 86	1942223130498