Prime p₀= 1282809512089634527 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 120 10 62 22 56 6 4 12 12 68 12 12 4 6 56 22 62 10 120 (?)
a_n: 0 120 130 192 214 270 276 280 292 304 372 384 396 400 406 462 484 546 556 676
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: 676
derived by truncating larger tuple
Found by: Cruncher Pete
db: batch=77, k=20, 120 10 62 22 56 6 4 12 12 68

SPT(16)	1282808720020625747	0 20 56 102 132 180 236 252 290 306 362 410 440 486 522 542	-792069008780
STPT(10)	1282808740631593907	0 2 30 32 42 44 54 56 84 86	-771458040620
TPT(14)	1282809145775072579	0 2 30 32 42 44 108 110 138 140 228 230 252 254	-366314561948
SPT(13)	1282809174527015353	0 30 54 66 126 150 180 210 234 294 306 330 360	-337562619174
SPT(16)	1282809253930790639	0 18 50 84 110 132 152 158 204 210 230 252 278 312 344 362	-258158843888
SPT(22)	1282809512089634513	0 14 134 144 206 228 284 290 294 306 318 386 398 410 414 420 476 498 560 570 690 704	-14
STPT(10)	1282809538816385537	0 2 24 26 42 44 60 62 84 86	26726751010
STPT(10)	1282809567287283941	0 2 6 8 48 50 90 92 96 98	55197649414
TPT(14)	1282809704776403927	0 2 102 104 114 116 132 134 210 212 264 266 312 314	192686769400
TPT(14)	1282810199872144001	0 2 60 62 210 212 288 290 378 380 480 482 510 512	687782509474
STPT(10)	1282810304047467719	0 2 18 20 30 32 42 44 60 62	791957833192
STPT(10)	1282810746518741129	0 2 18 20 30 32 42 44 60 62	1234429106602