Prime p₀= 2215198985657726681 starts a Symmetric tuple of 12 consecutive primes, which form 6 twin primes (STPT).
d_n: 0 2 16 2 40 2 34 2 40 2 16 2 (?)
a_n: 0 2 18 20 60 62 96 98 138 140 156 158
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: 158
Found by: Groo
db: batch=81, k=12, 2 16 2 40 2 34

STPT(10)	2215197390917512271	0 2 6 8 48 50 90 92 96 98	-1594740214410
SPT(16)	2215197545953482773	0 20 36 96 104 140 176 210 224 258 294 330 338 398 414 434	-1439704243908
SPT(16)	2215198354746772873	0 10 18 46 58 66 76 118 186 228 238 246 258 286 294 304	-630910953808
SPT(16)	2215198807321526899	0 34 70 112 120 144 160 174 190 204 220 244 252 294 330 364	-178336199782
SPT(16)	2215198892186499161	0 38 42 60 92 122 150 158 192 200 228 258 290 308 312 350	-93471227520
STPT(10)	2215198970942889851	0 2 78 80 108 110 138 140 216 218	-14714836830
STPT(10)	2215199008853747921	0 2 96 98 168 170 240 242 336 338	23196021240
SPT(16)	2215199050835584601	0 42 50 78 86 140 146 152 156 162 168 222 230 258 266 308	65177857920
STPT(12)	2215199245322161961	0 2 18 20 30 32 198 200 210 212 228 230	259664435280
STPT(12)	2215199247050813201	0 2 36 38 48 50 78 80 90 92 126 128	261393086520
STPT(10)	2215199565750550187	0 2 12 14 42 44 72 74 84 86	580092823506