Prime p₀= 1211450545557759917 starts a Symmetric tuple of 12 consecutive primes, which form 6 twin primes (STPT).
d_n: 0 2 10 2 28 2 16 2 28 2 10 2 (?)
a_n: 0 2 12 14 42 44 60 62 90 92 102 104
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: 104
Found by: stoneageman
db: batch=77, k=12, 2 10 2 28 2 16

SPT(16)	1211449076698610077	0 30 40 96 132 142 180 210 226 256 294 304 340 396 406 436	-1468859149840
STPT(10)	1211449413865024391	0 2 30 32 78 80 126 128 156 158	-1131692735526
SPT(16)	1211449839087073601	0 2 68 80 98 126 138 152 156 170 182 210 228 240 306 308	-706470686316
SPT(16)	1211449970868887747	0 20 50 84 90 134 152 210 236 294 312 356 362 396 426 446	-574688872170
SPT(16)	1211450343214141253	0 44 56 68 80 86 90 98 156 164 168 174 186 198 210 254	-202343618664
TPT(14)	1211450377889557829	0 2 48 50 60 62 102 104 288 290 330 332 408 410	-167668202088
STPT(10)	1211450755470201707	0 2 24 26 42 44 60 62 84 86	209912441790
STPT(10)	1211451060422767259	0 2 18 20 30 32 42 44 60 62	514865007342
SPT(16)	1211451322614198541	0 22 40 52 66 78 82 100 108 126 130 142 156 168 186 208	777056438624
TPT(14)	1211451395955751499	0 2 48 50 150 152 162 164 168 170 258 260 300 302	850397991582
STPT(10)	1211451696325034579	0 2 48 50 60 62 72 74 120 122	1150767274662