Prime p₀= 2171295457427163581 starts a Symmetric tuple of 16 consecutive primes (SPT).
d_n: 0 20 42 70 6 42 2 40 26 40 2 42 6 70 42 20 (?)
a_n: 0 20 62 132 138 180 182 222 248 288 290 332 338 408 450 470
All 16 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 470
Found by: JayPi
db: batch=81, k=16, 20 42 70 6 42 2 40 26

SPT(16)	2171294115254852551	0 6 10 22 36 52 78 112 216 250 276 292 306 318 322 328	-1342172311030
SPT(16)	2171294166352582279	0 10 12 42 82 84 88 142 150 204 208 210 250 280 282 292	-1291074581302
SPT(16)	2171294884360293751	0 30 36 70 82 100 138 178 180 220 258 276 288 322 328 358	-573066869830
STPT(10)	2171295269993739737	0 2 12 14 42 44 72 74 84 86	-187433423844
STPT(10)	2171295356002534427	0 2 30 32 42 44 54 56 84 86	-101424629154
SPT(16)	2171295359567054687	0 2 14 26 44 66 72 92 114 134 140 162 180 192 204 206	-97860108894
STPT(10)	2171295539446146227	0 2 72 74 102 104 132 134 204 206	82018982646
SPT(16)	2171295752772175091	0 38 72 98 102 126 132 170 228 266 272 296 300 326 360 398	295345011510
SPT(16)	2171295877023940861	0 10 22 42 78 90 132 162 178 208 250 262 298 318 330 340	419596777280
SPT(16)	2171296222672077097	0 22 72 76 132 160 190 220 252 282 312 340 396 400 450 472	765244913516
SPT(20)	2171296305575058997	0 52 54 130 136 142 154 156 174 192 244 262 280 282 294 300 306 382 384 436	848147895416