Prime p₀= 2104519663314138193 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 4 2 30 24 40 80 10 14 172 14 10 80 40 24 30 2 4 (?)
a_n: 0 4 6 36 60 100 180 190 204 376 390 400 480 520 544 574 576 580
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: 580
Found by: MarkRBright
db: batch=80, k=18, 4 2 30 24 40 80 10 14 172

TPT(14)	2104517794560929549	0 2 18 20 48 50 72 74 222 224 240 242 348 350	-1868753208644
SPT(16)	2104518093446941451	0 2 38 42 90 140 168 198 200 230 258 308 356 360 396 398	-1569867196742
SPT(16)	2104518598295718641	0 26 36 38 66 80 110 122 126 138 168 182 210 212 222 248	-1065018419552
SPT(16)	2104518655925253671	0 12 48 80 98 158 162 182 186 206 210 270 288 320 356 368	-1007388884522
SPT(16)	2104518810534994871	0 8 12 20 26 50 56 68 120 132 138 162 168 176 180 188	-852779143322
STPT(10)	2104519200673102901	0 2 30 32 120 122 210 212 240 242	-462641035292
STPT(10)	2104519690780207817	0 2 30 32 42 44 54 56 84 86	27466069624
STPT(10)	2104519964557866641	0 2 30 32 60 62 90 92 120 122	301243728448
STPT(10)	2104520020789427117	0 2 30 32 60 62 90 92 120 122	357475288924
SPT(16)	2104520304809127281	0 20 38 86 90 116 156 170 186 200 240 266 270 318 336 356	641494989088
STPT(10)	2104520422793438849	0 2 12 14 90 92 168 170 180 182	759479300656