Prime p₀= 2556485487473755421 starts a Symmetric tuple of 16 consecutive primes (SPT).
d_n: 0 20 10 12 6 42 72 20 16 20 72 42 6 12 10 20 (?)
a_n: 0 20 30 42 48 90 162 182 198 218 290 332 338 350 360 380
All 16 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 380
Found by: Penguin
db: batch=82, k=16, 20 10 12 6 42 72 20 16

SPT(16)	2556483690640925993	0 48 54 80 96 104 164 234 290 360 420 428 444 470 476 524	-1796832829428
STPT(10)	2556483698351125577	0 2 60 62 72 74 84 86 144 146	-1789122629844
SPT(16)	2556483715035321089	0 12 42 50 54 74 120 132 182 194 240 260 264 272 302 314	-1772438434332
SPT(16)	2556484043590247101	0 28 48 70 108 112 132 178 192 238 258 262 300 322 342 370	-1443883508320
STPT(10)	2556484364908448729	0 2 18 20 30 32 42 44 60 62	-1122565306692
TPT(14)	2556484517287510349	0 2 12 14 138 140 150 152 348 350 378 380 432 434	-970186245072
TPT(16)	2556486911651531099	0 2 48 50 90 92 132 134 300 302 330 332 348 350 360 362	1424177775678
STPT(10)	2556487013666655071	0 2 36 38 78 80 120 122 156 158	1526192899650
STPT(10)	2556487219403901629	0 2 18 20 30 32 42 44 60 62	1731930146208
STPT(10)	2556487221382745447	0 2 24 26 42 44 60 62 84 86	1733908990026
SPT(16)	2556487253251336831	0 10 28 60 72 118 150 178 192 220 252 298 310 342 360 370	1765777581410