Prime p₀= 2021897311273098901 starts a Symmetric tuple of 22 consecutive primes (SPT).
d_n: 0 78 12 18 60 24 16 2 18 22 12 26 12 22 18 2 16 24 60 18 12 78 (?)
a_n: 0 78 90 108 168 192 208 210 228 250 262 288 300 322 340 342 358 382 442 460 472 550
All 22 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 550
Found by: Argento
db: batch=80, k=22, 78 12 18 60 24 16 2 18 22 12 26

SPT(16)	2021893715466442859	0 12 18 30 38 42 44 60 122 138 140 144 152 164 170 182	-3595806656042
STPT(12)	2021893754967052781	0 2 36 38 66 68 150 152 180 182 216 218	-3556306046120
SPT(16)	2021893925651945491	0 16 70 108 172 186 210 226 312 328 352 366 430 468 522 538	-3385621153410
STPT(12)	2021894643739800161	0 2 36 38 48 50 78 80 90 92 126 128	-2667533298740
SPT(16)	2021896439938688641	0 12 30 42 70 72 118 130 138 150 196 198 226 238 256 268	-871334410260
SPT(16)	2021897270801492389	0 34 40 48 60 84 142 174 238 270 328 352 364 372 378 412	-40471606512
SPT(16)	2021897372963342047	0 10 40 46 84 196 210 244 306 340 354 466 504 510 540 550	61690243146
STPT(10)	2021897716027131881	0 2 30 32 120 122 210 212 240 242	404754032980
SPT(16)	2021898016901266199	0 48 50 78 90 128 138 150 152 164 174 212 224 252 254 302	705628167298
STPT(10)	2021898254609538881	0 2 36 38 78 80 120 122 156 158	943336439980
SPT(16)	2021898375138895063	0 4 16 30 88 118 156 174 220 238 276 306 364 378 390 394	1063865796162