Prime p₀= 1921339955035337531 starts a Symmetric tuple of 12 consecutive primes, which form 6 twin primes (STPT).
d_n: 0 2 4 2 40 2 28 2 40 2 4 2 (?)
a_n: 0 2 6 8 48 50 78 80 120 122 126 128
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: JZD
db: batch=80, k=12, 2 4 2 40 2 28

STPT(10)	1921338209182295471	0 2 78 80 138 140 198 200 276 278	-1745853042060
STPT(10)	1921338631123700819	0 2 18 20 30 32 42 44 60 62	-1323911636712
SPT(16)	1921338668991882289	0 18 108 112 118 172 238 282 400 444 510 564 570 574 664 682	-1286043455242
SPT(16)	1921339476864819569	0 12 48 54 60 84 90 132 270 312 318 342 348 354 390 402	-478170517962
SPT(16)	1921339600046718479	0 18 20 50 60 102 104 110 132 138 140 182 192 222 224 242	-354988619052
SPT(16)	1921339807619317853	0 36 48 56 96 98 120 150 206 236 258 260 300 308 320 356	-147416019678
STPT(10)	1921340149483050389	0 2 78 80 120 122 162 164 240 242	194447712858
STPT(10)	1921340496747001019	0 2 18 20 30 32 42 44 60 62	541711663488
STPT(10)	1921340497025145137	0 2 30 32 42 44 54 56 84 86	541989807606
SPT(16)	1921340898153746317	0 10 22 34 42 76 132 154 162 184 240 274 282 294 306 316	943118408786
STPT(10)	1921340961559064327	0 2 60 62 72 74 84 86 144 146	1006523726796