Prime p₀= 2221352720404820693 starts a Symmetric tuple of 13 consecutive primes (SPT).
d_n: 0 18 36 24 6 54 36 36 54 6 24 36 18 (?)
a_n: 0 18 54 78 84 138 174 210 264 270 294 330 348
All 13 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 348
Found by: Skyman
db: batch=81, k=13, 18 36 24 6 54 36

SPT(16)	2221351687969784297	0 30 72 92 140 146 152 210 272 330 336 342 390 410 452 482	-1032435036396
STPT(10)	2221351796766530957	0 2 42 44 72 74 102 104 144 146	-923638289736
STPT(10)	2221351997556132137	0 2 12 14 72 74 132 134 144 146	-722848688556
SPT(16)	2221352024974772699	0 18 32 48 78 92 114 120 182 188 210 224 254 270 284 302	-695430047994
STPT(10)	2221352477217645557	0 2 30 32 60 62 90 92 120 122	-243187175136
STPT(10)	2221352572949999261	0 2 36 38 108 110 180 182 216 218	-147454821432
SPT(13)	2221352804355389779	0 12 18 42 60 78 120 162 180 198 222 228 240	83950569086
SPT(16)	2221352873009424421	0 28 40 42 60 70 142 192 226 276 348 358 376 378 390 418	152604603728
STPT(10)	2221352958297998351	0 2 30 32 78 80 126 128 156 158	237893177658
SPT(16)	2221353000440395343	0 8 18 26 56 74 78 110 294 326 330 348 378 386 396 404	280035574650
STPT(10)	2221353171550867967	0 2 30 32 42 44 54 56 84 86	451146047274