Prime p₀= 1273473841745281381 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 6 12 48 36 16 68 10 14 28 14 10 68 16 36 48 12 6 (?)
a_n: 0 6 18 66 102 118 186 196 210 238 252 262 330 346 382 430 442 448
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: 448
Found by: HenkM
db: batch=77, k=18, 6 12 48 36 16 68 10 14 28

SPT(16)	1273471623729088757	0 2 84 102 150 176 182 194 252 264 270 296 344 362 444 446	-2218016192624
STPT(10)	1273471949916686321	0 2 6 8 48 50 90 92 96 98	-1891828595060
SPT(16)	1273472578453758593	0 18 66 96 108 140 186 228 248 290 336 368 380 410 458 476	-1263291522788
SPT(16)	1273473050453836189	0 42 52 124 172 180 214 240 322 348 382 390 438 510 520 562	-791291445192
SPT(16)	1273473490219110709	0 22 42 78 88 102 154 168 244 258 310 324 334 370 390 412	-351526170672
SPT(16)	1273473513747745307	0 2 20 26 44 50 104 114 152 162 216 222 240 246 264 266	-327997536074
STPT(10)	1273474137779887871	0 2 36 38 78 80 120 122 156 158	296034606490
SPT(16)	1273474598815241899	0 10 40 48 70 72 84 94 198 208 220 222 244 252 282 292	757069960518
SPT(16)	1273474714715889149	0 14 18 62 72 74 80 114 158 192 198 200 210 254 258 272	872970607768
SPT(16)	1273474895359445281	0 18 88 150 180 196 202 208 270 276 282 298 328 390 460 478	1053614163900
STPT(10)	1273475051033428091	0 2 36 38 78 80 120 122 156 158	1209288146710