Prime p₀= 369350672767982947 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 6 46 18 20 36 30 28 30 30 8 30 30 28 30 36 20 18 46 6 (?)
a_n: 0 6 52 70 90 126 156 184 214 244 252 282 312 340 370 406 426 444 490 496
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: 496
derived by truncating larger tuple
Found by: Cruncher Pete
db: batch=70, k=20, 6 46 18 20 36 30 28 30 30 8

SPT(14)	369350613341524699	0 42 70 108 174 178 180 232 234 238 304 342 370 412	-59426458248
SPT(14)	369350620879338127	0 12 40 42 66 84 94 102 112 130 154 156 184 196	-51888644820
SPT(14)	369350622225001927	0 30 72 82 112 132 136 156 160 180 210 220 262 292	-50542981020
SPT(14)	369350632383931141	0 30 52 58 88 118 132 136 150 180 210 216 238 268	-40384051806
SPT(14)	369350632659507511	0 52 96 102 112 126 130 132 136 150 160 166 210 262	-40108475436
SPT(22)	369350672767982911	0 36 42 88 106 126 162 192 220 250 280 288 318 348 376 406 442 462 480 526 532 568	-36
SPT(14)	369350683803794227	0 34 52 72 96 100 142 174 216 220 244 264 282 316	11035811280
SPT(14)	369350703198988673	0 44 54 66 84 96 110 114 128 140 158 170 180 224	30431005726
TPT(14)	369350703541494929	0 2 42 44 48 50 72 74 132 134 168 170 210 212	30773511982
TPT(12)	369350707411002377	0 2 30 32 132 134 144 146 222 224 264 266	34643019430
TPT(12)	369350716472681651	0 2 30 32 36 38 78 80 156 158 168 170	43704698704
SPT(14)	369350727385733459	0 2 20 84 108 150 158 174 182 224 248 312 330 332	54617750512