Prime p₀= 1993637265939723743 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 6 30 18 54 2 60 64 6 74 6 64 60 2 54 18 30 6 (?)
a_n: 0 6 36 54 108 110 170 234 240 314 320 384 444 446 500 518 548 554
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: 554
Found by: Landjunge
db: batch=80, k=18, 6 30 18 54 2 60 64 6 74

SPT(18)	1993635758186059859	0 42 44 72 78 102 114 120 144 158 182 188 200 224 230 258 260 302	-1507753663884
SPT(16)	1993635967556174569	0 24 34 84 108 118 144 150 238 244 270 280 304 354 364 388	-1298383549174
SPT(16)	1993636029405006299	0 32 48 62 80 158 162 192 200 230 234 312 330 344 360 392	-1236534717444
TPT(14)	1993636290908210939	0 2 12 14 42 44 198 200 258 260 282 284 300 302	-975031512804
SPT(16)	1993636874241209167	0 10 90 150 192 202 220 276 400 456 474 484 526 586 666 676	-391698514576
STPT(10)	1993637264615350769	0 2 48 50 60 62 72 74 120 122	-1324372974
SPT(16)	1993637346839201719	0 28 40 120 144 148 160 172 210 222 234 238 262 342 354 382	80899477976
SPT(16)	1993637654974872331	0 6 12 18 36 78 90 96 132 138 150 192 210 216 222 228	389035148588
SPT(16)	1993637811664264121	0 12 26 32 102 110 156 170 198 212 258 266 336 342 356 368	545724540378
STPT(10)	1993637836524766259	0 2 42 44 60 62 78 80 120 122	570585042516
STPT(10)	1993638012797767937	0 2 30 32 42 44 54 56 84 86	746858044194