Prime p₀= 505310544710506363 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 36 34 6 24 8 40 18 14 40 86 40 14 18 40 8 24 6 34 36 (?)
a_n: 0 36 70 76 100 108 148 166 180 220 306 346 360 378 418 426 450 456 490 526
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: 526
derived by truncating larger tuple
Found by: Cruncher Pete
db: batch=48, k=20, 36 34 6 24 8 40 18 14 40 86

TPT(12)	505310442135090461	0 2 48 50 78 80 126 128 216 218 258 260	-102575415902
SPT(14)	505310457185191907	0 62 126 132 156 200 222 230 252 296 320 326 390 452	-87525314456
SPT(14)	505310463471503351	0 26 90 96 110 132 156 212 236 258 272 278 342 368	-81239003012
SPT(14)	505310466435201113	0 8 26 30 66 74 86 108 120 128 164 168 186 194	-78275305250
SPT(14)	505310499181139801	0 2 6 30 48 56 66 122 132 140 158 182 186 188	-45529366562
SPT(22)	505310544710506351	0 12 48 82 88 112 120 160 178 192 232 318 358 372 390 430 438 462 468 502 538 550	-12
SPT(14)	505310548502130383	0 6 96 146 158 168 180 194 206 216 228 278 368 374	3791624020
SPT(14)	505310549637334153	0 6 10 58 96 108 168 226 286 298 336 384 388 394	4926827790
TPT(12)	505310555409044057	0 2 24 26 54 56 162 164 180 182 210 212	10698537694
TPT(12)	505310560732724519	0 2 90 92 168 170 192 194 210 212 222 224	16022218156
TPT(12)	505310577860860379	0 2 60 62 102 104 108 110 168 170 180 182	33150354016
TPT(12)	505310578097911211	0 2 96 98 216 218 300 302 306 308 378 380	33387404848