Prime p₀= 2040674881803537869 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 54 38 60 10 62 18 10 72 26 72 10 18 62 10 60 38 54 (?)
a_n: 0 54 92 152 162 224 242 252 324 350 422 432 450 512 522 582 620 674
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: 674
Found by: matsu_pl
db: batch=80, k=18, 54 38 60 10 62 18 10 72 26

SPT(15)	2040674139725662351	0 36 60 66 96 102 162 186 210 270 276 306 312 336 372	-742077875518
STPT(10)	2040674229379547147	0 2 12 14 42 44 72 74 84 86	-652423990722
STPT(10)	2040674343341962961	0 2 6 8 48 50 90 92 96 98	-538461574908
SPT(16)	2040674397210679007	0 32 42 44 114 144 180 200 204 224 260 290 360 362 372 404	-484592858862
TPT(14)	2040674469647238107	0 2 12 14 42 44 132 134 144 146 210 212 222 224	-412156299762
SPT(16)	2040674563591787843	0 26 44 48 66 80 104 108 146 150 174 188 206 210 228 254	-318211750026
SPT(16)	2040675034320093253	0 36 60 66 76 106 108 196 210 298 300 330 340 346 370 406	152516555384
STPT(10)	2040675301432018577	0 2 30 32 42 44 54 56 84 86	419628480708
STPT(10)	2040675463577077469	0 2 18 20 30 32 42 44 60 62	581773539600
STPT(10)	2040675772993282091	0 2 6 8 18 20 30 32 36 38	891189744222
SPT(16)	2040675811957809371	0 8 36 60 66 78 80 102 206 228 230 242 248 272 300 308	930154271502