Prime p₀= 2184413171616625561 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 16 50 12 18 52 104 6 24 4 24 6 104 52 18 12 50 16 (?)
a_n: 0 16 66 78 96 148 252 258 282 286 310 316 420 472 490 502 552 568
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: 568
Found by: Penguin
db: batch=81, k=18, 16 50 12 18 52 104 6 24 4

STPT(12)	2184412413856237811	0 2 36 38 96 98 180 182 240 242 276 278	-757760387750
STPT(10)	2184412654487394389	0 2 42 44 60 62 78 80 120 122	-517129231172
SPT(16)	2184412891842182389	0 24 34 42 82 94 108 112 120 124 138 150 190 198 208 232	-279774443172
STPT(10)	2184413021002351169	0 2 30 32 60 62 90 92 120 122	-150614274392
STPT(10)	2184413092429575989	0 2 42 44 60 62 78 80 120 122	-79187049572
SPT(16)	2184413098587184687	0 34 52 66 70 124 162 172 294 304 342 396 400 414 432 466	-73029440874
SPT(16)	2184413568613013123	0 18 60 140 158 180 194 206 228 240 254 276 294 374 416 434	396996387562
STPT(10)	2184414740538383537	0 2 30 32 60 62 90 92 120 122	1568921757976
SPT(16)	2184415250828506687	0 6 34 36 46 90 94 120 160 186 190 234 244 246 274 280	2079211881126
SPT(16)	2184415540232775419	0 20 48 72 104 150 174 198 224 248 272 318 350 374 402 422	2368616149858
SPT(16)	2184415795411327831	0 16 28 78 82 90 96 148 210 262 268 276 280 330 342 358	2623794702270