Prime p₀= 2999680227515022017 starts a Symmetric tuple of 12 consecutive primes, which form 6 twin primes (STPT).
d_n: 0 2 40 2 28 2 118 2 28 2 40 2 (?)
a_n: 0 2 42 44 72 74 192 194 222 224 264 266
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: 266
Found by: [SG-FC] hl
db: batch=82, k=12, 2 40 2 28 2 118

SPT(16)	2999677159884709273	0 76 78 106 144 154 208 216 238 246 300 310 348 376 378 454	-3067630312744
SPT(16)	2999677942415575147	0 6 16 30 72 82 90 124 132 166 174 184 226 240 250 256	-2285099446870
SPT(16)	2999678153885035933	0 24 36 46 48 78 114 150 154 190 226 256 258 268 280 304	-2073629986084
SPT(16)	2999678158931331841	0 36 52 126 132 166 178 208 300 330 342 376 382 456 472 508	-2068583690176
SPT(16)	2999678549785357003	0 6 16 36 40 54 84 106 174 196 226 240 244 264 274 280	-1677729665014
STPT(10)	2999679097875889901	0 2 36 38 108 110 180 182 216 218	-1129639132116
TPT(14)	2999680854292717919	0 2 30 32 60 62 132 134 210 212 240 242 282 284	626777695902
SPT(16)	2999681199672379697	0 30 56 126 146 170 200 224 312 336 366 390 410 480 506 536	972157357680
TPT(14)	2999681276283324131	0 2 30 32 78 80 228 230 288 290 300 302 438 440	1048768302114
SPT(16)	2999681414683383151	0 12 30 52 82 88 108 208 210 310 330 336 366 388 406 418	1187168361134
SPT(16)	2999681653143349217	0 30 54 72 80 96 114 186 290 362 380 396 404 422 446 476	1425628327200