Prime p₀= 2990494814769796457 starts a Symmetric tuple of 12 consecutive primes, which form 6 twin primes (STPT).
d_n: 0 2 10 2 40 2 4 2 40 2 10 2 (?)
a_n: 0 2 12 14 54 56 60 62 102 104 114 116
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: 116
Found by: [SG-2W]Kurzer
db: batch=82, k=12, 2 10 2 40 2 4

SPT(16)	2990494131558937837	0 4 16 22 52 60 66 72 94 100 106 114 144 150 162 166	-683210858620
STPT(10)	2990494270983178367	0 2 90 92 102 104 114 116 204 206	-543786618090
SPT(16)	2990494301465044469	0 14 18 20 50 60 72 102 170 200 212 222 252 254 258 272	-513304751988
STPT(10)	2990494454490651959	0 2 42 44 90 92 138 140 180 182	-360279144498
TPT(14)	2990494683903129839	0 2 18 20 42 44 120 122 168 170 270 272 282 284	-130866666618
SPT(16)	2990494795235447833	0 36 54 58 76 84 88 120 124 156 160 168 186 190 208 244	-19534348624
STPT(10)	2990495108437341917	0 2 24 26 42 44 60 62 84 86	293667545460
SPT(16)	2990496047945501489	0 14 30 38 62 80 98 108 164 174 192 210 234 242 258 272	1233175705032
STPT(10)	2990496213008031059	0 2 48 50 90 92 132 134 180 182	1398238234602
SPT(16)	2990496221509352789	0 2 18 80 90 98 140 164 168 192 234 242 252 314 330 332	1406739556332
STPT(10)	2990496473172301241	0 2 30 32 78 80 126 128 156 158	1658402504784