Prime p₀= 973353280038460963 starts a Symmetric tuple of 20 consecutive primes (SPT).
d_n: 0 28 8 10 30 12 2 40 14 16 44 16 14 40 2 12 30 10 8 28 (?)
a_n: 0 28 36 46 76 88 90 130 144 160 204 220 234 274 276 288 318 328 336 364
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: 364
Found by: HenkM
db: batch=76, k=20, 28 8 10 30 12 2 40 14 16 44

SPT(16)	973351420815821963	0 26 48 90 116 126 170 186 320 336 380 390 416 458 480 506	-1859222639000
SPT(16)	973351771450827581	0 18 50 72 96 140 198 206 282 290 348 392 416 438 470 488	-1508587633382
STPT(10)	973352216534370821	0 2 36 38 78 80 120 122 156 158	-1063504090142
SPT(16)	973352221616740387	0 24 30 42 76 94 100 126 160 186 192 210 244 256 262 286	-1058421720576
SPT(16)	973353048080394383	0 20 44 50 78 86 90 108 146 164 168 176 204 210 234 254	-231958066580
STPT(10)	973353103684556867	0 2 24 26 42 44 60 62 84 86	-176353904096
SPT(16)	973353340043953543	0 24 36 58 138 156 168 240 244 316 328 346 426 448 460 484	60005492580
SPT(16)	973353423461039441	0 18 20 30 32 60 78 120 140 182 200 228 230 240 242 260	143422578478
SPT(16)	973353509068501907	0 2 24 42 84 90 126 132 164 170 206 212 254 272 294 296	229030040944
STPT(10)	973353792618777371	0 2 6 8 48 50 90 92 96 98	512580316408
SPT(16)	973353863989765057	0 30 34 42 52 150 154 172 174 192 196 294 304 312 316 346	583951304094