Prime p₀= 2155842294548207399 starts a Symmetric tuple of 12 consecutive primes, which form 6 twin primes (STPT).
d_n: 0 2 76 2 40 2 46 2 40 2 76 2 (?)
a_n: 0 2 78 80 120 122 168 170 210 212 288 290
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: 290
Found by: ginga
db: batch=81, k=12, 2 76 2 40 2 46

SPT(16)	2155840943497900619	0 2 60 74 78 80 102 120 122 140 162 164 168 182 240 242	-1351050306780
SPT(16)	2155841012903110483	0 34 40 66 70 96 118 210 304 396 418 444 448 474 480 514	-1281645096916
SPT(16)	2155841198901985201	0 18 28 48 52 78 120 132 166 178 220 246 250 270 280 298	-1095646222198
SPT(16)	2155841330862612511	0 16 60 88 96 156 196 198 208 210 250 310 318 346 390 406	-963685594888
STPT(10)	2155841351923918037	0 2 30 32 42 44 54 56 84 86	-942624289362
SPT(16)	2155841544470890853	0 14 20 26 84 90 150 170 174 194 254 260 318 324 330 344	-750077316546
SPT(13)	2155842308052471251	0 6 12 42 72 96 126 156 180 210 240 246 252	13504263852
STPT(12)	2155842325108587149	0 2 72 74 102 104 138 140 168 170 240 242	30560379750
SPT(16)	2155842541237680901	0 30 40 78 138 168 180 240 256 316 328 358 418 456 466 496	246689473502
STPT(10)	2155842980499162569	0 2 18 20 30 32 42 44 60 62	685950955170
SPT(16)	2155843076484079823	0 14 18 66 86 96 120 144 260 284 308 318 338 386 390 404	781935872424