Prime p₀= 854399693481278381 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 2 4 60 26 16 24 6 42 26 16 26 42 6 24 16 26 60 4 2 (?)
a_n: 0 2 6 66 92 108 132 138 180 206 222 248 290 296 320 336 362 422 426 428
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: RFGuy_KCCO
db: batch=73, k=20, 2 4 60 26 16 24 6 42 26 16

STPT(10)	854398193429245037	0 2 24 26 42 44 60 62 84 86	-1500052033344
SPT(16)	854398520098739689	0 10 28 54 78 82 90 112 120 142 150 154 178 204 222 232	-1173382538692
STPT(10)	854398640884876229	0 2 18 20 30 32 42 44 60 62	-1052596402152
TPT(14)	854398758013075487	0 2 84 86 102 104 120 122 144 146 240 242 312 314	-935468202894
SPT(16)	854398844048179189	0 22 30 60 64 82 138 172 180 214 270 288 292 322 330 352	-849433099192
SPT(22)	854399693481278341	0 40 42 46 106 132 148 172 178 220 246 262 288 330 336 360 376 402 462 466 468 508	-40
STPT(10)	854399987383405949	0 2 12 14 90 92 168 170 180 182	293902127568
SPT(16)	854400081362244961	0 60 66 76 78 102 130 202 306 378 406 430 432 442 448 508	387880966580
STPT(10)	854400095741832839	0 2 12 14 90 92 168 170 180 182	402260554458
STPT(10)	854400442564104617	0 2 24 26 42 44 60 62 84 86	749082826236
STPT(10)	854400558950154917	0 2 30 32 42 44 54 56 84 86	865468876536
STPT(10)	854400725450510471	0 2 36 38 78 80 120 122 156 158	1031969232090