Prime p₀= 1425926317043600521 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 42 6 18 10 12 74 10 44 16 44 10 74 12 10 18 6 42 (?)
a_n: 0 42 48 66 76 88 162 172 216 232 276 286 360 372 382 400 406 448
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: UBT - Timbo
db: batch=78, k=18, 42 6 18 10 12 74 10 44 16

STPT(10)	1425925750968411191	0 2 36 38 78 80 120 122 156 158	-566075189330
SPT(16)	1425925754694435451	0 10 66 72 100 108 118 132 196 210 220 228 256 262 318 328	-562349165070
STPT(10)	1425925882509930551	0 2 36 38 78 80 120 122 156 158	-434533669970
SPT(16)	1425926013714923671	0 42 58 90 118 172 238 262 276 300 366 420 448 480 496 538	-303328676850
STPT(10)	1425926024632592447	0 2 30 32 42 44 54 56 84 86	-292411008074
STPT(10)	1425926130501250289	0 2 18 20 30 32 42 44 60 62	-186542350232
SPT(16)	1425926411660104421	0 8 26 68 72 92 96 140 198 242 246 266 270 312 330 338	94616503900
SPT(16)	1425926503757335193	0 14 48 96 104 126 176 188 216 228 278 300 308 356 390 404	186713734672
STPT(10)	1425927071054230487	0 2 30 32 42 44 54 56 84 86	754010629966
SPT(13)	1425927162708179279	0 12 42 78 120 150 180 210 240 282 318 348 360	845664578758
SPT(16)	1425927262956928909	0 34 42 48 52 58 132 150 262 280 354 360 364 370 378 412	945913328388