Prime p₀= 1539891688382810767 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 30 4 2 10 86 12 16 86 4 86 16 12 86 10 2 4 30 (?)
a_n: 0 30 34 36 46 132 144 160 246 250 336 352 364 450 460 462 466 496
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: 496
Found by: LCB001
db: batch=78, k=18, 30 4 2 10 86 12 16 86 4

SPT(16)	1539890023876642043	0 6 56 104 134 140 144 158 246 260 264 270 300 348 398 404	-1664506168724
SPT(16)	1539890102467767727	0 4 34 40 66 70 76 106 150 180 186 190 216 222 252 256	-1585915043040
SPT(16)	1539890217258819611	0 8 38 92 98 108 126 162 176 212 230 240 246 300 330 338	-1471123991156
STPT(10)	1539890569298625329	0 2 30 32 60 62 90 92 120 122	-1119084185438
SPT(16)	1539890809958603149	0 4 34 60 90 130 150 154 234 238 258 298 328 354 384 388	-878424207618
STPT(10)	1539890921352379109	0 2 42 44 90 92 138 140 180 182	-767030431658
SPT(16)	1539892073847233011	0 58 70 148 156 190 246 318 460 532 588 622 630 708 720 778	385464422244
SPT(16)	1539892156360021819	0 10 12 42 78 88 94 108 124 138 144 154 190 220 222 232	467977211052
STPT(10)	1539892612937973167	0 2 30 32 42 44 54 56 84 86	924555162400
STPT(10)	1539892733318153717	0 2 24 26 42 44 60 62 84 86	1044935342950
STPT(10)	1539893231857162097	0 2 24 26 42 44 60 62 84 86	1543474351330