Prime p₀= 1230557749960840451 starts a Symmetric tuple of 13 consecutive primes (SPT).
d_n: 0 12 78 36 6 24 60 60 24 6 36 78 12 (?)
a_n: 0 12 90 126 132 156 216 276 300 306 342 420 432
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: 432
Found by: vinn@[CNT]
db: batch=77, k=13, 12 78 36 6 24 60

SPT(16)	1230556323849009449	0 12 32 48 54 74 144 180 272 308 378 398 404 420 440 452	-1426111831002
SPT(16)	1230556478215047091	0 6 12 36 132 150 162 166 192 196 208 226 322 346 352 358	-1271745793360
SPT(16)	1230556505749410299	0 38 92 102 104 150 152 180 272 300 302 348 350 360 414 452	-1244211430152
SPT(16)	1230556567252492063	0 90 126 178 180 204 216 220 264 268 280 304 306 358 394 484	-1182708348388
SPT(16)	1230556886464040263	0 34 78 84 100 108 118 126 178 186 196 204 220 226 270 304	-863496800188
SPT(16)	1230556931494804853	0 38 60 78 98 108 114 128 156 170 176 186 206 224 246 284	-818466035598
SPT(16)	1230558063164453627	0 32 36 84 92 114 126 134 192 200 212 234 242 290 294 326	313203613176
STPT(10)	1230558083256964199	0 2 12 14 90 92 168 170 180 182	333296123748
STPT(10)	1230558856393174211	0 2 36 38 78 80 120 122 156 158	1106432333760
STPT(10)	1230559182021282299	0 2 18 20 30 32 42 44 60 62	1432060441848
SPT(16)	1230559492366533829	0 10 12 48 58 70 82 90 100 108 120 132 142 178 180 190	1742405693378