Prime p₀= 2456399761618965587 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 32 30 12 6 4 18 20 10 20 10 20 18 4 6 12 30 32 (?)
a_n: 0 32 62 74 80 84 102 122 132 152 162 182 200 204 210 222 252 284
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: 284
Found by: JayPi
db: batch=82, k=18, 32 30 12 6 4 18 20 10 20

SPT(16)	2456398538920602949	0 40 58 100 162 208 214 232 270 288 294 340 402 444 462 502	-1222698362638
SPT(16)	2456398962022789321	0 28 30 40 66 70 96 108 118 130 156 160 186 196 198 226	-799596176266
TPT(14)	2456399158959528509	0 2 42 44 102 104 138 140 150 152 198 200 270 272	-602659437078
SPT(18)	2456399222956622519	0 14 32 104 120 122 134 144 192 242 290 300 312 314 330 402 420 434	-538662343068
SPT(16)	2456399574354293807	0 32 42 72 116 120 176 200 246 270 326 330 374 404 414 446	-187264671780
SPT(16)	2456399628446403161	0 2 12 120 158 162 176 198 200 222 236 240 278 386 396 398	-133172562426
TPT(14)	2456399896598397389	0 2 78 80 90 92 180 182 210 212 300 302 330 332	134979431802
STPT(10)	2456399986572570299	0 2 18 20 30 32 42 44 60 62	224953604712
SPT(16)	2456400187208351551	0 10 12 46 52 82 90 96 172 178 186 216 222 256 258 268	425589385964
STPT(10)	2456400226404356777	0 2 30 32 42 44 54 56 84 86	464785391190
STPT(10)	2456400594024868859	0 2 18 20 30 32 42 44 60 62	832405903272