Prime p₀= 2017756668393788857 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 42 10 14 54 4 2 16 8 16 8 16 2 4 54 14 10 42 (?)
a_n: 0 42 52 66 120 124 126 142 150 166 174 190 192 196 250 264 274 316
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: 316
Found by: Dingo
db: batch=80, k=18, 42 10 14 54 4 2 16 8 16

TPT(14)	2017754527330066097	0 2 60 62 84 86 102 104 144 146 150 152 180 182	-2141063722760
STPT(10)	2017754867259873527	0 2 30 32 60 62 90 92 120 122	-1801133915330
SPT(16)	2017755026208624419	0 38 48 68 78 80 90 134 138 182 192 194 204 224 234 272	-1642185164438
SPT(16)	2017755534228286859	0 2 32 44 48 188 200 222 230 252 264 404 408 420 450 452	-1134165501998
STPT(10)	2017756290287570981	0 2 36 38 78 80 120 122 156 158	-378106217876
SPT(16)	2017756518366155387	0 2 72 116 126 140 144 156 170 182 186 200 210 254 324 326	-150027633470
SPT(16)	2017756725443412299	0 12 30 38 42 48 110 134 168 192 254 260 264 272 290 302	57049623442
SPT(16)	2017756728900613331	0 2 50 56 96 120 126 138 140 152 158 182 222 228 276 278	60506824474
STPT(10)	2017756988196484859	0 2 18 20 30 32 42 44 60 62	319802696002
STPT(10)	2017757141217072551	0 2 6 8 18 20 30 32 36 38	472823283694
SPT(16)	2017757256709545599	0 8 30 68 80 84 98 108 110 120 134 138 150 188 210 218	588315756742