Prime p₀= 1277228395557716387 starts a Symmetric tuple of 12 consecutive primes, which form 6 twin primes (STPT).
d_n: 0 2 40 2 16 2 22 2 16 2 40 2 (?)
a_n: 0 2 42 44 60 62 84 86 102 104 144 146
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: 146
Found by: Egon olsen
db: batch=77, k=12, 2 40 2 16 2 22

SPT(16)	1277226604868671777	0 42 64 90 112 130 172 180 196 204 246 264 286 312 334 376	-1790689044610
SPT(16)	1277226706876162459	0 22 48 72 82 84 124 160 162 198 238 240 250 274 300 322	-1688681553928
STPT(10)	1277226998334737687	0 2 12 14 42 44 72 74 84 86	-1397222978700
STPT(10)	1277227195411374671	0 2 36 38 78 80 120 122 156 158	-1200146341716
STPT(10)	1277227747013828549	0 2 42 44 60 62 78 80 120 122	-648543887838
SPT(16)	1277227858371315827	0 44 74 110 116 120 126 132 224 230 236 240 246 282 312 356	-537186400560
STPT(10)	1277228464013418911	0 2 36 38 78 80 120 122 156 158	68455702524
SPT(16)	1277228541946854667	0 30 46 84 114 132 136 184 312 360 364 382 412 450 466 496	146389138280
SPT(16)	1277228723981674319	0 14 38 44 98 104 122 128 144 150 168 174 228 234 258 272	328423957932
SPT(16)	1277228822888130491	0 18 32 42 92 108 122 152 168 198 212 228 278 288 302 320	427330414104
STPT(12)	1277228910153475619	0 2 30 32 90 92 138 140 198 200 228 230	514595759232