Prime p₀= 1621862184373586261 starts a Symmetric tuple of 12 consecutive primes, which form 6 twin primes (STPT).
d_n: 0 2 28 2 64 2 112 2 64 2 28 2 (?)
a_n: 0 2 30 32 96 98 210 212 276 278 306 308
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: 308
Found by: xii5ku
db: batch=78, k=12, 2 28 2 64 2 112

TPT(14)	1621861610518035149	0 2 42 44 90 92 102 104 180 182 282 284 300 302	-573855551112
SPT(16)	1621861654154238509	0 24 38 60 108 168 188 192 200 204 224 284 332 354 368 392	-530219347752
STPT(10)	1621861823250816149	0 2 30 32 60 62 90 92 120 122	-361122770112
SPT(16)	1621862015263247917	0 4 64 102 124 144 172 210 274 312 340 360 382 420 480 484	-169110338344
SPT(16)	1621862125747029559	0 28 42 60 64 108 142 144 148 150 184 228 232 250 264 292	-58626556702
SPT(16)	1621862129558499589	0 24 40 52 82 120 172 210 232 270 322 360 390 402 418 442	-54815086672
STPT(10)	1621862401856971829	0 2 18 20 60 62 102 104 120 122	217483385568
SPT(16)	1621862628933585547	0 6 22 34 40 64 90 112 174 196 222 246 252 264 280 286	444559999286
STPT(10)	1621862693593130039	0 2 18 20 30 32 42 44 60 62	509219543778
SPT(16)	1621863034172299021	0 12 78 96 130 132 168 190 228 250 286 288 322 340 406 418	849798712760
SPT(16)	1621863099547273399	0 4 18 48 90 102 150 154 168 172 220 232 274 304 318 322	915173687138