Prime p₀= 2991038148760910461 starts a Symmetric tuple of 13 consecutive primes (SPT).
d_n: 0 6 66 18 72 30 54 54 30 72 18 66 6 (?)
a_n: 0 6 72 90 162 192 246 300 330 402 420 486 492
All 13 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 492
Found by: Coleslaw
db: batch=82, k=13, 6 66 18 72 30 54

SPT(16)	2991036729362206531	0 10 12 28 48 52 90 100 108 118 156 160 180 196 198 208	-1419398703930
STPT(10)	2991037428265987949	0 2 30 32 60 62 90 92 120 122	-720494922512
STPT(10)	2991037692105574289	0 2 12 14 90 92 168 170 180 182	-456655336172
STPT(10)	2991037782225890987	0 2 42 44 72 74 102 104 144 146	-366535019474
SPT(16)	2991037956103196563	0 4 36 40 70 76 88 120 124 156 168 174 204 208 240 244	-192657713898
SPT(16)	2991038081170096091	0 36 56 92 110 180 228 290 348 410 458 528 546 582 602 638	-67590814370
SPT(16)	2991038299278838723	0 66 88 90 94 106 118 160 204 246 258 270 274 276 298 364	150517928262
SPT(16)	2991038551768181731	0 10 60 66 82 102 150 168 190 208 256 276 292 298 348 358	403007271270
SPT(16)	2991038713638343993	0 48 76 94 114 136 154 196 198 240 258 280 300 318 346 394	564877433532
SPT(16)	2991038968638484783	0 4 10 24 66 70 90 144 220 274 294 298 340 354 360 364	819877574322
SPT(16)	2991039040953419683	0 10 16 24 64 76 84 90 94 100 108 120 160 168 174 184	892192509222