Prime p₀= 2380646587094696857 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 10 50 34 2 6 34 44 12 22 12 44 34 6 2 34 50 10 (?)
a_n: 0 10 60 94 96 102 136 180 192 214 226 270 304 310 312 346 396 406
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: 406
Found by: Drago75
db: batch=81, k=18, 10 50 34 2 6 34 44 12 22

SPT(16)	2380645817823477401	0 18 36 42 60 66 80 92 126 138 152 158 176 182 200 218	-769271219456
STPT(10)	2380645974148745921	0 2 36 38 78 80 120 122 156 158	-612945950936
SPT(16)	2380645985841850171	0 18 30 42 70 130 132 162 208 238 240 300 328 340 352 370	-601252846686
SPT(16)	2380646217064656623	0 14 20 56 120 158 186 188 216 218 246 284 348 384 390 404	-370030040234
STPT(10)	2380646288106407141	0 2 6 8 18 20 30 32 36 38	-298988289716
STPT(10)	2380646344781800097	0 2 30 32 60 62 90 92 120 122	-242312896760
STPT(10)	2380647126388906559	0 2 18 20 30 32 42 44 60 62	539294209702
SPT(16)	2380647397414555459	0 22 24 54 100 102 112 142 192 222 232 234 280 310 312 334	810319858602
TPT(14)	2380647423638507159	0 2 48 50 108 110 120 122 132 134 138 140 180 182	836543810302
STPT(10)	2380647465858154289	0 2 18 20 30 32 42 44 60 62	878763457432
STPT(10)	2380647729709249727	0 2 24 26 42 44 60 62 84 86	1142614552870