Prime p₀= 2217221437634626877 starts a Symmetric tuple of 12 consecutive primes, which form 6 twin primes (STPT).
d_n: 0 2 40 2 10 2 124 2 10 2 40 2 (?)
a_n: 0 2 42 44 54 56 180 182 192 194 234 236
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: 236
Found by: JayPi
db: batch=81, k=12, 2 40 2 10 2 124

STPT(10)	2217219044221438721	0 2 36 38 78 80 120 122 156 158	-2393413188156
STPT(10)	2217219411979050299	0 2 18 20 30 32 42 44 60 62	-2025655576578
SPT(16)	2217219729711244277	0 50 90 96 104 134 162 222 224 284 312 342 350 356 396 446	-1707923382600
STPT(10)	2217219935133087737	0 2 30 32 72 74 114 116 144 146	-1502501539140
TPT(14)	2217220153779437507	0 2 42 44 72 74 150 152 192 194 252 254 294 296	-1283855189370
SPT(16)	2217220952815452433	0 10 16 64 70 90 136 154 240 258 304 324 330 378 384 394	-484819174444
SPT(16)	2217221642289529787	0 60 72 86 120 146 156 164 252 260 270 296 330 344 356 416	204654902910
TPT(14)	2217221804302033211	0 2 18 20 138 140 168 170 180 182 198 200 258 260	366667406334
SPT(16)	2217222691173177797	0 2 104 110 116 132 170 174 182 186 224 240 246 252 354 356	1253538550920
SPT(16)	2217223383123352837	0 22 52 102 142 156 162 172 294 304 310 324 364 414 444 466	1945488725960
SPT(16)	2217223428739564507	0 12 70 82 184 192 196 252 274 330 334 342 444 456 514 526	1991104937630