Prime p₀= 2993352858693433031 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 6 6 8 18 12 16 2 10 2 10 2 16 12 18 8 6 6 (?)
a_n: 0 6 12 20 38 50 66 68 78 80 90 92 108 120 138 146 152 158
All 18 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 158
Found by: [SG-FC] hl
db: batch=82, k=18, 6 6 8 18 12 16 2 10 2

STPT(10)	2993352046163126897	0 2 30 32 42 44 54 56 84 86	-812530306134
SPT(16)	2993352365806013767	0 12 34 66 72 100 156 166 360 370 426 454 460 492 514 526	-492887419264
SPT(16)	2993352381903667747	0 22 60 64 82 106 112 124 132 144 150 174 192 196 234 256	-476789765284
STPT(10)	2993352543561518387	0 2 12 14 72 74 132 134 144 146	-315131914644
STPT(10)	2993352558846034139	0 2 18 20 30 32 42 44 60 62	-299847398892
SPT(16)	2993352606149528681	0 2 32 50 60 66 78 86 282 290 302 308 318 336 366 368	-252543904350
SPT(16)	2993353029548799917	0 30 32 44 62 80 114 146 150 182 216 234 252 264 266 296	170855366886
STPT(10)	2993353067115836597	0 2 12 14 42 44 72 74 84 86	208422403566
SPT(16)	2993353111203769081	0 18 48 60 96 186 196 258 328 390 400 490 526 538 568 586	252510336050
SPT(16)	2993353297996149013	0 34 78 126 168 216 276 286 288 298 358 406 448 496 540 574	439302715982
SPT(16)	2993353515562843261	0 22 36 90 118 132 162 180 268 286 316 330 358 412 426 448	656869410230