Prime p₀= 2474316691022284699 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 22 90 2 28 12 6 20 58 56 58 20 6 12 28 2 90 22 (?)
a_n: 0 22 112 114 142 154 160 180 238 294 352 372 378 390 418 420 510 532
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: 532
Found by: Sammey19
db: batch=82, k=18, 22 90 2 28 12 6 20 58 56

SPT(16)	2474315903382019471	0 10 12 48 52 78 90 112 216 238 250 276 280 316 318 328	-787640265228
STPT(12)	2474316003007290119	0 2 42 44 60 62 150 152 168 170 210 212	-688014994580
SPT(16)	2474316079105003769	0 38 42 104 114 138 140 182 240 282 284 308 318 380 384 422	-611917280930
STPT(10)	2474316453966139931	0 2 36 38 78 80 120 122 156 158	-237056144768
STPT(10)	2474316517366370837	0 2 30 32 42 44 54 56 84 86	-173655913862
STPT(10)	2474316526062700127	0 2 30 32 42 44 54 56 84 86	-164959584572
SPT(16)	2474316828838700803	0 60 70 88 124 180 210 234 244 268 298 354 390 408 418 478	137816416104
STPT(10)	2474316867307824569	0 2 18 20 30 32 42 44 60 62	176285539870
SPT(16)	2474317493092078159	0 12 28 58 70 78 100 114 148 162 184 192 204 234 250 262	802069793460
STPT(10)	2474317863703461701	0 2 30 32 78 80 126 128 156 158	1172681177002
STPT(10)	2474317890487422827	0 2 12 14 42 44 72 74 84 86	1199465138128