Prime p₀= 2191971541481535431 starts a Symmetric tuple of 12 consecutive primes, which form 6 twin primes (STPT).
d_n: 0 2 46 2 28 2 10 2 28 2 46 2 (?)
a_n: 0 2 48 50 78 80 90 92 120 122 168 170
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: 170
Found by: [SG-FC] hl
db: batch=81, k=12, 2 46 2 28 2 10

SPT(16)	2191970575577458777	0 10 34 36 66 70 84 100 126 142 156 160 190 192 216 226	-965904076654
STPT(10)	2191970641311285017	0 2 30 32 42 44 54 56 84 86	-900170250414
SPT(16)	2191970713840041709	0 58 70 108 172 198 208 222 238 252 262 288 352 390 402 460	-827641493722
STPT(10)	2191970785535133269	0 2 18 20 30 32 42 44 60 62	-755946402162
SPT(18)	2191970929668627847	0 6 10 34 36 54 136 154 160 180 186 204 286 304 306 330 334 340	-611812907584
STPT(10)	2191970945389985819	0 2 48 50 90 92 132 134 180 182	-596091549612
SPT(16)	2191971576508052159	0 18 30 32 80 120 134 140 192 198 212 252 300 302 314 332	35026516728
SPT(16)	2191972324187697803	0 20 38 68 78 120 156 164 180 188 224 266 276 306 324 344	782706162372
SPT(16)	2191972449993825503	0 8 20 90 120 146 156 158 186 188 198 224 254 324 336 344	908512290072
SPT(16)	2191972611349784657	0 20 32 66 80 92 206 210 392 396 510 522 536 570 582 602	1069868249226
SPT(16)	2191972769431786027	0 42 64 82 112 124 150 156 190 196 222 234 264 282 304 346	1227950250596