Prime p₀= 657645249901775221 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 42 24 22 44 4 24 102 8 10 38 10 8 102 24 4 44 22 24 42 (?)
a_n: 0 42 66 88 132 136 160 262 270 280 318 328 336 438 462 466 510 532 556 598
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: 598
derived by truncating larger tuple
Found by: JagDoc
db: batch=72, k=20, 42 24 22 44 4 24 102 8 10 38

TPT(12)	657645011709502169	0 2 90 92 372 374 462 464 510 512 552 554	-238192273052
TPT(12)	657645106363955249	0 2 12 14 138 140 180 182 192 194 210 212	-143537819972
TPT(12)	657645122736456779	0 2 108 110 150 152 240 242 348 350 462 464	-127165318442
SPT(16)	657645170362077451	0 30 60 72 138 168 190 210 268 288 310 340 406 418 448 478	-79539697770
TPT(12)	657645178706748521	0 2 18 20 120 122 126 128 210 212 240 242	-71195026700
SPT(22)	657645249901775173	0 48 90 114 136 180 184 208 310 318 328 366 376 384 486 510 514 558 580 604 646 694	-48
TPT(12)	657645287987661977	0 2 54 56 90 92 120 122 222 224 264 266	38085886756
TPT(12)	657645346258221731	0 2 18 20 60 62 156 158 180 182 216 218	96356446510
TPT(12)	657645359101030541	0 2 96 98 138 140 150 152 168 170 216 218	109199255320
TPT(12)	657645361866873299	0 2 78 80 132 134 150 152 162 164 168 170	111965098078
SPT(16)	657645394682093309	0 38 62 90 104 114 128 134 198 204 218 228 242 270 294 332	144780318088
TPT(12)	657645435944169059	0 2 30 32 48 50 78 80 90 92 132 134	186042393838