Prime p₀= 3006662302958427797 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 26 10 18 2 48 36 4 18 2 18 4 36 48 2 18 10 26 (?)
a_n: 0 26 36 54 56 104 140 144 162 164 182 186 222 270 272 290 300 326
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: 326
Found by: [SG]ATA-Rolf
db: batch=82, k=18, 26 10 18 2 48 36 4 18 2

STPT(10)	3006660939177712007	0 2 42 44 72 74 102 104 144 146	-1363780715790
STPT(10)	3006660998571206069	0 2 30 32 60 62 90 92 120 122	-1304387221728
SPT(16)	3006661097282020613	0 8 50 54 78 116 120 164 240 284 288 326 350 354 396 404	-1205676407184
STPT(10)	3006661616041759757	0 2 42 44 72 74 102 104 144 146	-686916668040
SPT(16)	3006661978719772367	0 24 30 56 60 80 92 102 134 144 156 176 180 206 212 236	-324238655430
SPT(16)	3006662112108239131	0 70 126 136 150 166 180 186 232 238 252 268 282 292 348 418	-190850188666
STPT(10)	3006662477385666509	0 2 48 50 90 92 132 134 180 182	174427238712
STPT(10)	3006662785945421747	0 2 42 44 72 74 102 104 144 146	482986993950
STPT(10)	3006663019430480477	0 2 12 14 42 44 72 74 84 86	716472052680
SPT(16)	3006663561215490053	0 8 20 36 50 78 80 104 150 174 176 204 218 234 246 254	1258257062256
SPT(18)	3006664110431091449	0 42 50 62 84 132 174 182 188 234 240 248 290 338 360 372 380 422	1807472663652