Prime p₀= 2264870543564280109 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 148 6 24 12 8 22 12 2 4 2 12 22 8 12 24 6 148 (?)
a_n: 0 148 154 178 190 198 220 232 234 238 240 252 274 282 294 318 324 472
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: 472
Found by: JayPi
db: batch=81, k=18, 148 6 24 12 8 22 12 2 4

SPT(16)	2264868719160879571	0 12 42 90 112 138 160 180 190 210 232 258 280 328 358 370	-1824403400538
STPT(10)	2264869078591436069	0 2 18 20 30 32 42 44 60 62	-1464972844040
SPT(16)	2264869112654501237	0 2 14 36 80 104 120 140 156 176 192 216 260 282 294 296	-1430909778872
SPT(16)	2264869534836109337	0 12 30 66 80 96 104 110 126 132 140 156 170 206 224 236	-1008728170772
SPT(16)	2264869849882596223	0 10 24 114 166 190 208 264 280 336 354 378 430 520 534 544	-693681683886
SPT(16)	2264870146101623707	0 10 12 34 72 84 100 124 150 174 190 202 240 262 264 274	-397462656402
STPT(10)	2264870647597049519	0 2 18 20 30 32 42 44 60 62	104032769410
STPT(10)	2264871013156634261	0 2 36 38 78 80 120 122 156 158	469592354152
TPT(14)	2264871038572618709	0 2 48 50 60 62 102 104 198 200 228 230 312 314	495008338600
SPT(16)	2264871860598000239	0 32 62 78 92 98 104 108 134 138 144 150 164 180 210 242	1317033720130
STPT(10)	2264872104943970747	0 2 30 32 42 44 54 56 84 86	1561379690638