Prime p₀= 239355397634210849 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 18 6 26 18 70 2 22 2 18 88 18 2 22 2 70 18 26 6 18 (?)
a_n: 0 18 24 50 68 138 140 162 164 182 270 288 290 312 314 384 402 428 434 452
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: 452
derived by truncating larger tuple
Found by: desktop64
db: batch=69, k=20, 18 6 26 18 70 2 22 2 18 88

SPT(14)	239355343172206229	0 20 38 72 78 80 90 122 132 134 140 174 192 212	-54462004620
SPT(14)	239355361587346639	0 10 18 40 60 64 70 78 84 88 108 130 138 148	-36046864210
SPT(14)	239355365884738289	0 60 62 72 84 138 198 284 344 398 410 420 422 482	-31749472560
SPT(14)	239355387549578981	0 20 72 80 92 98 116 132 150 156 168 176 228 248	-10084631868
SPT(14)	239355394297555631	0 6 18 36 42 90 98 120 128 176 182 200 212 218	-3336655218
SPT(22)	239355397634210827	0 22 40 46 72 90 160 162 184 186 204 292 310 312 334 336 406 424 450 456 474 496	-22
SPT(14)	239355404820255181	0 16 28 58 90 108 120 196 208 226 258 288 300 316	7186044332
SPT(14)	239355420504535079	0 24 42 72 110 164 194 210 240 294 332 362 380 404	22870324230
TPT(12)	239355423645849317	0 2 102 104 120 122 240 242 252 254 300 302	26011638468
SPT(16)	239355448927049051	0 20 42 80 86 120 122 156 176 210 212 246 252 290 312 332	51292838202
TPT(12)	239355452271716549	0 2 42 44 108 110 150 152 198 200 240 242	54637505700
SPT(14)	239355457125548107	0 4 16 22 36 42 120 136 214 220 234 240 252 256	59491337258