Prime p₀= 2121748189187483999 starts a Symmetric tuple of 12 consecutive primes, which form 6 twin primes (STPT).
d_n: 0 2 28 2 28 2 10 2 28 2 28 2 (?)
a_n: 0 2 30 32 60 62 72 74 102 104 132 134
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: 134
Found by: kim-b-h
db: batch=80, k=12, 2 28 2 28 2 10

STPT(10)	2121747318769286099	0 2 48 50 90 92 132 134 180 182	-870418197900
STPT(10)	2121747668893529021	0 2 36 38 78 80 120 122 156 158	-520293954978
SPT(16)	2121747892274932183	0 10 28 58 78 108 114 138 166 190 196 226 246 276 294 304	-296912551816
STPT(10)	2121747937742121707	0 2 42 44 72 74 102 104 144 146	-251445362292
SPT(16)	2121748000418796007	0 12 42 52 90 102 126 172 174 220 244 256 294 304 334 346	-188768687992
STPT(10)	2121748123295963759	0 2 42 44 120 122 198 200 240 242	-65891520240
STPT(10)	2121748240224255191	0 2 6 8 48 50 90 92 96 98	51036771192
STPT(10)	2121748355592876839	0 2 48 50 90 92 132 134 180 182	166405392840
SPT(18)	2121748416809570449	0 42 52 70 102 130 132 174 202 222 250 292 294 322 354 372 382 424	227622086450
SPT(16)	2121748570232338063	0 64 76 78 108 118 148 154 210 216 246 256 286 288 300 364	381044854064
STPT(10)	2121748613315864381	0 2 30 32 60 62 90 92 120 122	424128380382