Prime p₀= 991037756832566561 starts a Symmetric tuple of 12 consecutive primes, which form 6 twin primes (STPT).
d_n: 0 2 16 2 10 2 64 2 10 2 16 2 (?)
a_n: 0 2 18 20 30 32 96 98 108 110 126 128
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: 128
Found by: Theadalus
db: batch=76, k=12, 2 16 2 10 2 64

SPT(16)	991036275382355603	0 24 38 78 98 104 114 120 134 140 150 156 176 216 230 254	-1481450210958
SPT(16)	991036309320372103	0 24 94 96 148 166 174 196 228 250 258 276 328 330 400 424	-1447512194458
SPT(16)	991036409611457933	0 36 66 98 110 140 146 168 176 198 204 234 246 278 308 344	-1347221108628
SPT(16)	991037054897424859	0 22 34 48 100 112 114 162 280 328 330 342 394 408 420 442	-701935141702
SPT(16)	991037266025002561	0 66 72 96 100 112 136 180 208 252 276 288 292 316 322 388	-490807564000
STPT(10)	991037449105898111	0 2 30 32 78 80 126 128 156 158	-307726668450
STPT(10)	991037982189280811	0 2 36 38 78 80 120 122 156 158	225356714250
STPT(12)	991038338735689547	0 2 30 32 84 86 90 92 144 146 174 176	581903122986
SPT(16)	991038620148848473	0 16 24 48 60 70 90 100 144 154 174 184 196 220 228 244	863316281912
SPT(16)	991038903842132309	0 14 30 68 108 110 114 120 128 134 138 140 180 218 234 248	1147009565748
STPT(10)	991039216260057719	0 2 18 20 30 32 42 44 60 62	1459427491158