Prime p₀= 2281508676392559967 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 6 10 36 30 2 118 32 16 26 16 32 118 2 30 36 10 6 (?)
a_n: 0 6 16 52 82 84 202 234 250 276 292 324 442 444 474 510 520 526
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: 526
Found by: JayPi
db: batch=81, k=18, 6 10 36 30 2 118 32 16 26

TPT(14)	2281507054214115149	0 2 42 44 48 50 78 80 102 104 162 164 198 200	-1622178444818
STPT(10)	2281507073299166861	0 2 30 32 78 80 126 128 156 158	-1603093393106
STPT(10)	2281507210203378257	0 2 42 44 72 74 102 104 144 146	-1466189181710
SPT(16)	2281508289360266569	0 12 28 52 54 72 82 120 172 210 220 238 240 264 280 292	-387032293398
STPT(10)	2281508303692920719	0 2 18 20 30 32 42 44 60 62	-372699639248
SPT(16)	2281508361567532283	0 20 54 86 90 98 114 146 168 200 216 224 228 260 294 314	-314825027684
STPT(10)	2281509239005603331	0 2 6 8 48 50 90 92 96 98	562613043364
SPT(16)	2281509584738273093	0 14 26 50 86 96 114 116 138 140 158 168 204 228 240 254	908345713126
STPT(10)	2281509700720859417	0 2 12 14 42 44 72 74 84 86	1024328299450
STPT(10)	2281509832707980141	0 2 36 38 78 80 120 122 156 158	1156315420174
SPT(16)	2281509943627098659	0 18 74 80 98 114 128 144 164 180 194 210 228 234 290 308	1267234538692