Prime p₀= 2038794849685488353 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 20 24 16 8 18 30 12 6 46 6 12 30 18 8 16 24 20 (?)
a_n: 0 20 44 60 68 86 116 128 134 180 186 198 228 246 254 270 294 314
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: ChUcK
db: batch=80, k=18, 20 24 16 8 18 30 12 6 46

SPT(16)	2038794235994409731	0 12 78 96 110 122 168 182 186 200 246 258 272 290 356 368	-613691078622
STPT(12)	2038794407855473547	0 2 30 32 42 44 102 104 114 116 144 146	-441830014806
SPT(16)	2038794591930087451	0 52 70 78 120 126 160 162 166 168 202 208 250 258 276 328	-257755400902
SPT(16)	2038794613910306771	0 2 36 50 78 102 128 138 140 150 176 200 228 242 276 278	-235775181582
SPT(16)	2038794759062601341	0 6 42 48 50 90 140 158 240 258 308 348 350 356 392 398	-90622887012
STPT(10)	2038794818414502689	0 2 78 80 210 212 342 344 420 422	-31270985664
SPT(16)	2038794943012585853	0 8 18 20 78 84 134 210 218 294 344 350 408 410 420 428	93327097500
SPT(16)	2038795167678342131	0 2 86 182 188 198 210 218 240 248 260 270 276 372 456 458	317992853778
SPT(16)	2038795490029275199	0 28 40 94 112 144 150 172 210 232 238 270 288 342 354 382	640343786846
STPT(10)	2038795525420848317	0 2 54 56 132 134 210 212 264 266	675735359964
SPT(16)	2038795655302044577	0 22 64 102 112 126 190 204 262 276 340 354 364 402 444 466	805616556224