Prime p₀= 1682814762422921819 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 18 20 4 12 18 32 24 52 18 26 18 52 24 32 18 12 4 20 18 (?)
a_n: 0 18 38 42 54 72 104 128 180 198 224 242 294 318 350 368 380 384 404 422
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: 422
Found by: Alnitak2019
db: batch=79, k=20, 18 20 4 12 18 32 24 52 18 26

TPT(14)	1682812725333656867	0 2 42 44 60 62 144 146 234 236 252 254 294 296	-2037089264952
TPT(14)	1682812803128618507	0 2 54 56 84 86 192 194 234 236 264 266 342 344	-1959294303312
SPT(16)	1682812975259645233	0 36 54 58 60 70 88 96 148 156 174 184 186 190 208 244	-1787163276586
SPT(16)	1682814193172173729	0 30 70 160 174 220 240 264 280 304 324 370 384 474 514 544	-569250748090
STPT(10)	1682814264766618691	0 2 36 38 78 80 120 122 156 158	-497656303128
SPT(16)	1682814377923832917	0 36 60 70 100 136 150 186 196 232 246 282 312 322 346 382	-384499088902
SPT(16)	1682814894966901961	0 2 56 68 102 126 192 198 350 356 422 446 480 492 546 548	132543980142
SPT(16)	1682815023863061079	0 12 24 78 82 112 118 124 258 264 270 300 304 358 370 382	261440139260
SPT(18)	1682815025882067013	0 10 24 28 30 54 58 60 100 138 178 180 184 208 210 214 228 238	263459145194
SPT(16)	1682815049411746093	0 4 6 34 64 84 96 114 130 148 160 180 210 238 240 244	286988824274
STPT(12)	1682815313124727679	0 2 30 32 60 62 72 74 102 104 132 134	550701805860