Prime p₀= 2021773222086189617 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 2 10 14 4 56 4 80 10 86 10 80 4 56 4 14 10 2 (?)
a_n: 0 2 12 26 30 86 90 170 180 266 276 356 360 416 420 434 444 446
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: 446
Found by: arkiss
db: batch=80, k=18, 2 10 14 4 56 4 80 10 86

TPT(14)	2021771242482798407	0 2 12 14 72 74 84 86 210 212 264 266 360 362	-1979603391210
STPT(10)	2021771431096913339	0 2 18 20 30 32 42 44 60 62	-1790989276278
TPT(14)	2021771732756046419	0 2 78 80 150 152 168 170 252 254 330 332 348 350	-1489330143198
SPT(16)	2021772035837805169	0 22 34 52 72 88 90 112 150 172 174 190 210 228 240 262	-1186248384448
TPT(14)	2021772619483186109	0 2 72 74 78 80 150 152 288 290 378 380 390 392	-602603003508
STPT(10)	2021772731054418281	0 2 30 32 60 62 90 92 120 122	-491031771336
SPT(16)	2021773363584620441	0 6 12 38 48 60 68 78 80 90 98 110 120 146 152 158	141498430824
SPT(16)	2021773444994774521	0 10 18 40 52 66 70 108 130 168 172 186 198 220 228 238	222908584904
STPT(10)	2021773699805454059	0 2 12 14 90 92 168 170 180 182	477719264442
STPT(10)	2021773929239439041	0 2 6 8 18 20 30 32 36 38	707153249424
SPT(16)	2021773985414051977	0 36 42 82 84 96 132 150 166 184 220 232 234 274 280 316	763327862360