Prime p₀= 2165233273732865261 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 18 12 2 24 76 14 10 32 10 2 10 32 10 14 76 24 2 12 18 (?)
a_n: 0 18 30 32 56 132 146 156 188 198 200 210 242 252 266 342 366 368 380 398
All 20 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: fzs600
db: batch=81, k=20, 18 12 2 24 76 14 10 32 10 2

STPT(10)	2165231624234377817	0 2 24 26 42 44 60 62 84 86	-1649498487444
SPT(16)	2165231637340535479	0 70 72 78 100 184 202 214 228 240 258 342 364 370 372 442	-1636392329782
SPT(16)	2165232108775491011	0 2 12 48 68 72 90 98 102 110 128 132 152 188 198 200	-1164957374250
TPT(14)	2165232442073973707	0 2 24 26 54 56 120 122 204 206 210 212 240 242	-831658891554
SPT(16)	2165232689366552629	0 54 148 154 160 204 228 244 264 280 304 348 354 360 454 508	-584366312632
SPT(16)	2165233215486865819	0 10 94 102 130 144 162 184 240 262 280 294 322 330 414 424	-58245999442
SPT(16)	2165233316439459397	0 6 42 52 94 162 180 202 264 286 304 372 414 424 460 466	42706594136
TPT(14)	2165233580360024171	0 2 30 32 90 92 156 158 186 188 270 272 306 308	306627158910
SPT(16)	2165233741738076621	0 6 20 80 110 120 132 150 152 170 182 192 222 282 296 302	468005211360
SPT(16)	2165234189427017773	0 36 54 64 94 114 136 138 166 168 190 210 240 250 268 304	915694152512
SPT(18)	2165234775962900471	0 20 90 96 110 126 152 156 170 198 212 216 242 258 272 278 348 368	1502230035210