Prime p₀= 2804780127821308837 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 16 30 30 26 18 36 10 36 8 36 10 36 18 26 30 30 16 (?)
a_n: 0 16 46 76 102 120 156 166 202 210 246 256 292 310 336 366 396 412
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: 412
Found by: JayPi
db: batch=82, k=18, 16 30 30 26 18 36 10 36 8

SPT(16)	2804778187688361307	0 34 42 90 114 126 142 180 196 234 250 262 286 334 342 376	-1940132947530
STPT(10)	2804778671151050639	0 2 12 14 90 92 168 170 180 182	-1456670258198
SPT(16)	2804779012571906329	0 24 58 60 84 102 114 144 148 178 190 208 232 234 268 292	-1115249402508
STPT(10)	2804779170369647291	0 2 6 8 18 20 30 32 36 38	-957451661546
STPT(10)	2804779490794980857	0 2 12 14 72 74 132 134 144 146	-637026327980
SPT(16)	2804779847637213679	0 22 58 60 78 94 154 178 204 228 288 304 322 324 360 382	-280184095158
SPT(16)	2804780277552083531	0 38 120 152 186 198 218 276 422 480 500 512 546 578 660 698	149730774694
STPT(10)	2804780490926942987	0 2 30 32 42 44 54 56 84 86	363105634150
STPT(10)	2804780710537736339	0 2 48 50 90 92 132 134 180 182	582716427502
TPT(14)	2804781405925342979	0 2 90 92 102 104 120 122 282 284 330 332 342 344	1278104034142
SPT(16)	2804781428158036091	0 8 18 32 42 62 72 92 168 188 198 218 228 242 252 260	1300336727254