Prime p₀= 1540027665898703731 starts a Symmetric tuple of 13 consecutive primes (SPT).
d_n: 0 18 42 6 60 30 12 12 30 60 6 42 18 (?)
a_n: 0 18 60 66 126 156 168 180 210 270 276 318 336
All 13 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 336
Found by: ladmo
db: batch=78, k=13, 18 42 6 60 30 12

SPT(16)	1540026503079801281	0 6 32 72 90 116 122 132 140 150 156 182 200 240 266 272	-1162818902450
SPT(16)	1540026534482631131	0 26 32 132 140 150 188 222 236 270 308 318 326 426 432 458	-1131416072600
SPT(16)	1540026577083458977	0 24 90 94 112 132 142 162 184 204 214 234 252 256 322 346	-1088815244754
STPT(10)	1540026664379573351	0 2 36 38 78 80 120 122 156 158	-1001519130380
STPT(10)	1540027237719686039	0 2 18 20 30 32 42 44 60 62	-428179017692
STPT(10)	1540027624491790037	0 2 90 92 102 104 114 116 204 206	-41406913694
STPT(10)	1540027718796161867	0 2 30 32 42 44 54 56 84 86	52897458136
STPT(10)	1540028272531368467	0 2 12 14 42 44 72 74 84 86	606632664736
STPT(10)	1540028337553898741	0 2 6 8 48 50 90 92 96 98	671655195010
SPT(16)	1540028486354256233	0 86 96 98 104 126 140 168 236 264 278 300 306 308 318 404	820455552502
STPT(10)	1540028731385222579	0 2 42 44 90 92 138 140 180 182	1065486518848