Prime p₀= 2499456776073775417 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 22 48 14 76 2 18 24 10 26 10 24 18 2 76 14 48 22 (?)
a_n: 0 22 70 84 160 162 180 204 214 240 250 274 292 294 370 384 432 454
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: 454
Found by: JayPi
db: batch=82, k=18, 22 48 14 76 2 18 24 10 26

SPT(16)	2499454546465603367	0 14 26 32 42 44 56 60 86 90 102 104 114 120 132 146	-2229608172050
STPT(10)	2499456003411379289	0 2 12 14 90 92 168 170 180 182	-772662396128
SPT(16)	2499456043128581819	0 18 32 44 60 72 162 164 168 170 260 272 288 300 314 332	-732945193598
SPT(16)	2499456232379688941	0 30 36 38 60 72 108 116 132 140 176 188 210 212 218 248	-543694086476
SPT(16)	2499456523166209807	0 12 46 70 72 100 102 106 120 124 126 154 156 180 214 226	-252907565610
STPT(10)	2499456728235647351	0 2 78 80 108 110 138 140 216 218	-47838128066
SPT(16)	2499457150995830023	0 40 108 144 154 166 186 208 216 238 258 270 280 316 384 424	374922054606
STPT(10)	2499457208834333747	0 2 24 26 42 44 60 62 84 86	432760558330
TPT(14)	2499457240547373311	0 2 18 20 36 38 168 170 186 188 228 230 240 242	464473597894
STPT(10)	2499457587803214107	0 2 24 26 42 44 60 62 84 86	811729438690
SPT(13)	2499457805670975187	0 30 42 114 132 150 162 174 192 210 282 294 324	1029597199770