Prime p₀= 2203555185051635171 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 8 4 38 10 36 6 56 48 76 48 56 6 36 10 38 4 8 (?)
a_n: 0 8 12 50 60 96 102 158 206 282 330 386 392 428 438 476 480 488
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: 488
Found by: JayPi
db: batch=81, k=18, 8 4 38 10 36 6 56 48 76

SPT(16)	2203554041775102139	0 102 114 120 138 142 148 160 252 264 270 274 292 298 310 412	-1143276533032
SPT(16)	2203554056233874023	0 4 96 106 144 180 186 270 340 424 430 466 504 514 606 610	-1128817761148
SPT(18)	2203554203644439257	0 6 16 22 52 112 120 124 156 160 192 196 204 264 294 300 310 316	-981407195914
SPT(16)	2203554885921807697	0 10 24 30 42 76 126 130 156 160 210 244 256 262 276 286	-299129827474
SPT(16)	2203554953622407083	0 10 58 76 90 156 168 174 220 226 238 304 318 336 384 394	-231429228088
SPT(16)	2203554973594509001	0 12 60 70 112 130 132 150 238 256 258 276 318 328 376 388	-211457126170
SPT(16)	2203555393392059969	0 30 42 104 140 170 174 204 308 338 342 372 408 470 482 512	208340424798
SPT(16)	2203555440952987123	0 6 34 118 126 136 144 148 156 160 168 178 186 270 298 304	255901351952
SPT(16)	2203556229306830303	0 20 38 68 98 126 146 156 248 258 278 306 336 366 384 404	1044255195132
SPT(16)	2203556245631715313	0 34 54 70 94 118 124 126 208 210 216 240 264 280 300 334	1060580080142
TPT(14)	2203556433415442837	0 2 30 32 42 44 54 56 84 86 210 212 222 224	1248363807666