Prime p₀= 1708320239089406401 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 6 6 18 30 18 4 116 34 74 34 116 4 18 30 18 6 6 (?)
a_n: 0 6 12 30 60 78 82 198 232 306 340 456 460 478 508 526 532 538
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: 538
Found by: CoolAtchOk
db: batch=79, k=18, 6 6 18 30 18 4 116 34 74

SPT(16)	1708319411600919071	0 48 62 92 120 180 182 188 252 258 260 320 348 378 392 440	-827488487330
STPT(10)	1708319666772733109	0 2 18 20 30 32 42 44 60 62	-572316673292
SPT(16)	1708319842802070089	0 42 54 98 180 182 210 212 270 272 300 302 384 428 440 482	-396287336312
SPT(16)	1708320005306879761	0 12 40 70 76 82 166 180 208 222 306 312 318 348 376 388	-233782526640
STPT(10)	1708320022053422579	0 2 42 44 90 92 138 140 180 182	-217035983822
SPT(16)	1708320093846227657	0 42 54 80 146 186 200 224 312 336 350 390 456 482 494 536	-145243178744
SPT(16)	1708321088612789107	0 6 22 36 46 52 66 72 190 196 210 216 226 240 256 262	849523382706
STPT(10)	1708321216017414377	0 2 30 32 42 44 54 56 84 86	976928007976
STPT(10)	1708321314041821649	0 2 18 20 60 62 102 104 120 122	1074952415248
STPT(10)	1708321625285621777	0 2 30 32 72 74 114 116 144 146	1386196215376
STPT(10)	1708321825649155901	0 2 30 32 60 62 90 92 120 122	1586559749500