Prime p₀= 2177690128975844149 starts a Symmetric tuple of 16 consecutive primes (SPT).
d_n: 0 18 42 4 26 58 42 24 20 24 42 58 26 4 42 18 (?)
a_n: 0 18 60 64 90 148 190 214 234 258 300 358 384 388 430 448
All 16 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 448
Found by: [SG-FC] hl
db: batch=81, k=16, 18 42 4 26 58 42 24 20

SPT(16)	2177688439315797449	0 72 90 104 132 150 174 192 230 248 272 290 318 332 350 422	-1689660046700
SPT(16)	2177688861822788141	0 2 50 66 90 98 102 120 128 146 150 158 182 198 246 248	-1267153056008
SPT(16)	2177689111551145847	0 50 72 74 90 96 116 176 180 240 260 266 282 284 306 356	-1017424698302
STPT(10)	2177689445124331517	0 2 30 32 42 44 54 56 84 86	-683851512632
STPT(10)	2177689756367865359	0 2 42 44 90 92 138 140 180 182	-372607978790
SPT(16)	2177690068507458251	0 8 68 80 102 110 120 138 230 248 258 266 288 300 360 368	-60468385898
STPT(10)	2177690566707959099	0 2 18 20 30 32 42 44 60 62	437732114950
SPT(16)	2177690599920396601	0 106 108 112 126 148 172 186 262 276 300 322 336 340 342 448	470944552452
SPT(16)	2177690624518138787	0 30 44 50 54 56 92 96 140 144 180 182 186 192 206 236	495542294638
STPT(10)	2177690710418472827	0 2 30 32 42 44 54 56 84 86	581442628678
STPT(10)	2177690817350567327	0 2 54 56 72 74 90 92 144 146	688374723178