Prime p₀= 2164194234060916271 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 68 18 16 24 20 6 4 24 38 24 4 6 20 24 16 18 68 (?)
a_n: 0 68 86 102 126 146 152 156 180 218 242 246 252 272 296 312 330 398
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: 398
Found by: Landjunge
db: batch=81, k=18, 68 18 16 24 20 6 4 24 38

STPT(10)	2164191901949077421	0 2 36 38 78 80 120 122 156 158	-2332111838850
STPT(10)	2164191980317850837	0 2 54 56 72 74 90 92 144 146	-2253743065434
SPT(16)	2164192094155576817	0 2 26 50 104 114 150 164 222 236 272 282 336 360 384 386	-2139905339454
STPT(10)	2164192201382797007	0 2 90 92 102 104 114 116 204 206	-2032678119264
STPT(10)	2164192655963859047	0 2 90 92 102 104 114 116 204 206	-1578097057224
STPT(10)	2164193787967785989	0 2 18 20 30 32 42 44 60 62	-446093130282
STPT(10)	2164194318560142497	0 2 30 32 72 74 114 116 144 146	84499226226
SPT(16)	2164194571532681147	0 14 42 80 102 122 132 146 180 194 204 224 246 284 312 326	337471764876
SPT(16)	2164194907002167777	0 2 14 20 62 66 80 96 140 156 170 174 216 222 234 236	672941251506
STPT(10)	2164195310384775671	0 2 90 92 150 152 210 212 300 302	1076323859400
SPT(16)	2164195339144220477	0 30 96 104 144 170 194 200 210 216 240 266 306 314 380 410	1105083304206