Prime p₀= 2993105745353272721 starts a Symmetric tuple of 12 consecutive primes, which form 6 twin primes (STPT).
d_n: 0 2 16 2 10 2 166 2 10 2 16 2 (?)
a_n: 0 2 18 20 30 32 198 200 210 212 228 230
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: 230
Found by: JonS
db: batch=82, k=12, 2 16 2 10 2 166

SPT(16)	2993104249703594969	0 54 98 150 180 192 200 222 230 252 260 272 302 354 398 452	-1495649677752
STPT(10)	2993104547828037701	0 2 36 38 78 80 120 122 156 158	-1197525235020
STPT(10)	2993104641975268697	0 2 30 32 60 62 90 92 120 122	-1103378004024
SPT(16)	2993104660040150599	0 30 58 60 84 144 168 172 180 184 208 268 292 294 322 352	-1085313122122
SPT(16)	2993105146910345321	0 26 50 110 126 140 150 186 260 296 306 320 336 396 420 446	-598442927400
STPT(10)	2993105616983070179	0 2 42 44 90 92 138 140 180 182	-128370202542
TPT(14)	2993105791515439931	0 2 60 62 126 128 246 248 420 422 438 440 456 458	46162167210
STPT(10)	2993106162589031297	0 2 54 56 72 74 90 92 144 146	417235758576
SPT(16)	2993106383732946853	0 60 94 120 126 168 186 208 276 298 316 358 364 390 424 484	638379674132
STPT(10)	2993106455971860797	0 2 72 74 162 164 252 254 324 326	710618588076
SPT(16)	2993106757097989237	0 4 10 16 34 54 72 102 124 154 172 192 210 216 222 226	1011744716516