Prime p₀= 2281515609224335103 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 14 6 48 18 10 20 24 4 26 4 24 20 10 18 48 6 14 (?)
a_n: 0 14 20 68 86 96 116 140 144 170 174 198 218 228 246 294 300 314
All 18 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 314
Found by: Orange Kid
db: batch=81, k=18, 14 6 48 18 10 20 24 4 26

SPT(16)	2281514141368514513	0 14 38 48 80 86 140 168 236 264 318 324 356 366 390 404	-1467855820590
STPT(10)	2281514393552758547	0 2 30 32 42 44 54 56 84 86	-1215671576556
SPT(16)	2281514472059565791	0 26 32 60 102 116 170 180 242 252 306 320 362 390 396 422	-1137164769312
SPT(16)	2281514612450948827	0 10 36 52 54 142 150 184 192 226 234 322 324 340 366 376	-996773386276
SPT(16)	2281514980235100059	0 2 14 24 62 72 74 80 84 90 92 102 140 150 162 164	-628989235044
SPT(16)	2281515277012798763	0 84 140 150 210 224 228 254 264 290 294 308 368 378 434 518	-332211536340
SPT(16)	2281515981470703359	0 30 42 48 62 78 114 144 158 188 224 240 254 260 272 302	372246368256
STPT(10)	2281516027445072417	0 2 24 26 42 44 60 62 84 86	418220737314
SPT(16)	2281516164314892877	0 16 60 102 114 150 172 190 276 294 316 352 364 406 450 466	555090557774
SPT(16)	2281516374351674071	0 16 118 132 160 192 198 226 252 280 286 318 346 360 462 478	765127338968
SPT(16)	2281516382430425977	0 12 30 40 90 96 156 172 210 226 286 292 342 352 370 382	773206090874