Prime p₀= 2499491414984567561 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 48 2 6 40 20 16 26 60 262 60 26 16 20 40 6 2 48 (?)
a_n: 0 48 50 56 96 116 132 158 218 480 540 566 582 602 642 648 650 698
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: 698
Found by: JayPi
db: batch=82, k=18, 48 2 6 40 20 16 26 60 262

SPT(16)	2499489764751054209	0 38 68 92 110 114 140 162 200 222 248 252 270 294 324 362	-1650233513352
SPT(16)	2499489967117564387	0 82 94 154 172 184 186 192 214 220 222 234 252 312 324 406	-1447867003174
STPT(10)	2499490503301086467	0 2 12 14 42 44 72 74 84 86	-911683481094
STPT(10)	2499490536133954511	0 2 36 38 78 80 120 122 156 158	-878850613050
TPT(14)	2499490642681842737	0 2 12 14 30 32 132 134 144 146 174 176 222 224	-772302724824
STPT(10)	2499491301324931271	0 2 120 122 138 140 156 158 276 278	-113659636290
SPT(16)	2499491434511877889	0 48 100 114 124 130 144 150 202 208 222 228 238 252 304 352	19527310328
STPT(10)	2499492321882342539	0 2 18 20 30 32 42 44 60 62	906897774978
SPT(16)	2499492926079228901	0 12 28 42 82 90 112 118 120 126 148 156 196 210 226 238	1511094661340
SPT(16)	2499492943653133459	0 10 12 58 100 118 142 150 250 258 282 300 342 388 390 400	1528668565898
STPT(10)	2499493120241968187	0 2 30 32 42 44 54 56 84 86	1705257400626