Prime p₀= 2166338932732707709 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 22 8 18 6 10 20 4 42 152 42 4 20 10 6 18 8 22 (?)
a_n: 0 22 30 48 54 64 84 88 130 282 324 328 348 358 364 382 390 412
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: Penguin
db: batch=81, k=18, 22 8 18 6 10 20 4 42 152

SPT(16)	2166337550860247461	0 36 42 48 60 100 142 160 168 186 228 268 280 286 292 328	-1381872460248
STPT(10)	2166337619600133611	0 2 30 32 78 80 126 128 156 158	-1313132574098
STPT(10)	2166337664584403111	0 2 96 98 168 170 240 242 336 338	-1268148304598
STPT(10)	2166337733983084547	0 2 12 14 42 44 72 74 84 86	-1198749623162
SPT(16)	2166337818955169971	0 40 42 70 72 82 88 132 166 210 216 226 228 256 258 298	-1113777537738
SPT(16)	2166338591534479849	0 48 58 60 82 90 154 160 252 258 322 330 352 354 364 412	-341198227860
STPT(12)	2166339178562832617	0 2 12 14 54 56 180 182 222 224 234 236	245830124908
SPT(16)	2166339245170019389	0 12 18 22 42 52 84 144 148 208 240 250 270 274 280 292	312437311680
STPT(10)	2166339829381278701	0 2 66 68 138 140 210 212 276 278	896648570992
TPT(14)	2166339876035588501	0 2 138 140 150 152 210 212 216 218 276 278 288 290	943302880792
STPT(12)	2166339876035588639	0 2 12 14 72 74 78 80 138 140 150 152	943302880930