Prime p₀= 50471109740816291 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 8 10 42 2 28 50 6 30 6 64 6 30 6 50 28 2 42 10 8 (?)
a_n: 0 8 18 60 62 90 140 146 176 182 246 252 282 288 338 366 368 410 420 428
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: 428
derived by truncating larger tuple
Found by: ChelseaOilman
db: batch=65, k=20, 8 10 42 2 28 50 6 30 6 64

STPT(10)	50471095634349419	0 2 30 32 120 122 210 212 240 242	-14106466872
TPT(12)	50471096686516631	0 2 108 110 180 182 228 230 240 242 318 320	-13054299660
SPT(14)	50471097337062401	0 2 30 42 86 102 132 206 236 252 296 308 336 338	-12403753890
TPT(12)	50471100672227267	0 2 30 32 90 92 180 182 222 224 240 242	-9068589024
SPT(14)	50471102835559157	0 6 12 30 42 92 162 224 294 344 356 374 380 386	-6905257134
SPT(22)	50471109740816279	0 12 20 30 72 74 102 152 158 188 194 258 264 294 300 350 378 380 422 432 440 452	-12
SPT(14)	50471112816684589	0 22 40 64 72 94 100 162 168 190 198 222 240 262	3075868298
SPT(14)	50471133667724489	0 20 32 54 84 102 104 150 152 170 200 222 234 254	23926908198
TPT(12)	50471138381905931	0 2 6 8 18 20 30 32 126 128 138 140	28641089640
SPT(14)	50471138706835111	0 12 16 42 66 88 102 136 150 172 196 222 226 238	28966018820
SPT(14)	50471139866127829	0 4 30 52 60 70 90 112 132 142 150 172 198 202	30125311538
SPT(14)	50471143333379627	0 14 84 92 132 134 140 144 150 152 192 200 270 284	33592563336