Prime p₀= 3023416080170692897 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 4 2 16 30 2 16 12 38 16 38 12 16 2 30 16 2 4 (?)
a_n: 0 4 6 22 52 54 70 82 120 136 174 186 202 204 234 250 252 256
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: 256
Found by: fzs600
db: batch=82, k=18, 4 2 16 30 2 16 12 38 16

SPT(16)	3023414711651546413	0 6 18 28 40 48 60 76 138 154 166 174 186 196 208 214	-1368519146484
STPT(10)	3023415049857438317	0 2 54 56 72 74 90 92 144 146	-1030313254580
SPT(16)	3023415533857939501	0 10 28 42 58 102 108 136 162 190 196 240 256 270 288 298	-546312753396
TPT(14)	3023415544946125361	0 2 6 8 126 128 156 158 168 170 216 218 258 260	-535224567536
STPT(10)	3023415733791993389	0 2 48 50 90 92 132 134 180 182	-346378699508
SPT(16)	3023415797907766739	0 32 44 78 114 132 140 144 188 192 200 218 254 288 300 332	-282262926158
SPT(18)	3023416148561164957	0 52 54 82 100 102 124 144 226 390 472 492 514 516 534 562 564 616	68390472060
TPT(14)	3023416352757167681	0 2 18 20 66 68 96 98 108 110 150 152 156 158	272586474784
SPT(16)	3023416821495549503	0 14 48 84 96 128 138 164 180 206 216 248 260 296 330 344	741324856606
SPT(18)	3023417043374935421	0 2 32 56 126 158 162 222 266 282 326 386 390 422 492 516 546 548	963204242524
STPT(10)	3023417079967981979	0 2 42 44 60 62 78 80 120 122	999797289082