Prime p₀= 2505400822416797623 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 6 24 10 18 12 6 20 18 46 18 20 6 12 18 10 24 6 (?)
a_n: 0 6 30 40 58 70 76 96 114 160 178 198 204 216 234 244 268 274
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: 274
Found by: JayPi
db: batch=82, k=18, 6 24 10 18 12 6 20 18 46

SPT(16)	2505399574328345731	0 12 40 58 66 126 166 178 210 222 262 322 330 348 376 388	-1248088451892
SPT(16)	2505399850595045099	0 2 38 42 68 80 108 138 152 182 210 222 248 252 288 290	-971821752524
SPT(16)	2505400061064959347	0 16 60 70 72 150 160 172 174 186 196 274 276 286 330 346	-761351838276
SPT(16)	2505400229587804499	0 14 18 42 44 68 90 98 144 152 174 198 200 224 228 242	-592828993124
TPT(14)	2505400534252910711	0 2 96 98 138 140 180 182 216 218 228 230 240 242	-288163886912
STPT(10)	2505400653875676281	0 2 6 8 48 50 90 92 96 98	-168541121342
SPT(16)	2505401149875122189	0 12 38 42 54 98 104 122 150 168 174 218 230 234 260 272	327458324566
SPT(16)	2505402251009961101	0 12 68 86 96 108 116 138 140 162 170 182 192 210 266 278	1428593163478
SPT(16)	2505402581992371427	0 6 10 34 66 114 136 142 144 150 172 220 252 276 280 286	1759575573804
SPT(16)	2505402680557395461	0 8 42 72 108 122 140 156 182 198 216 230 266 296 330 338	1858140597838
SPT(16)	2505402923505506657	0 2 24 54 72 86 140 182 234 276 330 344 362 392 414 416	2101088709034