Prime p₀= 2173865194549200071 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 2 6 22 20 16 14 6 10 26 10 6 14 16 20 22 6 2 (?)
a_n: 0 2 8 30 50 66 80 86 96 122 132 138 152 168 188 210 216 218
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: 218
Found by: [SG-FC] hl
db: batch=81, k=18, 2 6 22 20 16 14 6 10 26

STPT(10)	2173864148230721657	0 2 42 44 72 74 102 104 144 146	-1046318478414
SPT(16)	2173864475588197771	0 18 36 40 42 46 66 100 108 142 162 166 168 172 190 208	-718961002300
STPT(10)	2173864711767067799	0 2 18 20 30 32 42 44 60 62	-482782132272
SPT(16)	2173864898032200427	0 4 52 64 82 84 94 120 136 162 172 174 192 204 252 256	-296516999644
TPT(14)	2173864920177504821	0 2 36 38 66 68 78 80 120 122 156 158 198 200	-274371695250
SPT(16)	2173865123820587143	0 6 24 94 144 196 214 226 228 240 258 310 360 430 448 454	-70728612928
SPT(16)	2173865564493944197	0 6 42 52 70 132 142 154 192 204 214 276 294 304 340 346	369944744126
STPT(10)	2173865763952475807	0 2 30 32 42 44 54 56 84 86	569403275736
STPT(10)	2173865949777579287	0 2 24 26 42 44 60 62 84 86	755228379216
SPT(16)	2173866340920919679	0 14 38 42 48 62 68 72 80 84 90 104 110 114 138 152	1146371719608
STPT(10)	2173866396255851651	0 2 6 8 48 50 90 92 96 98	1201706651580