Prime p₀= 1856478499869767387 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 66 18 12 8 18 24 4 24 8 24 4 24 18 8 12 18 66 (?)
a_n: 0 66 84 96 104 122 146 150 174 182 206 210 234 252 260 272 290 356
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: 356
Found by: amazing
db: batch=79, k=18, 66 18 12 8 18 24 4 24 8

STPT(10)	1856476348571247539	0 2 12 14 90 92 168 170 180 182	-2151298519848
SPT(16)	1856476489670358041	0 6 36 38 50 62 72 150 188 266 276 288 300 302 332 338	-2010199409346
SPT(18)	1856477231192027629	0 34 40 54 58 64 78 168 174 184 190 280 294 300 304 318 324 358	-1268677739758
SPT(16)	1856477358588362831	0 48 96 102 122 140 150 188 270 308 318 336 356 362 410 458	-1141281404556
SPT(16)	1856477861839496663	0 8 14 48 54 110 138 150 374 386 414 470 476 510 516 524	-638030270724
SPT(16)	1856478467693977837	0 22 54 90 124 150 202 220 264 282 334 360 394 430 462 484	-32175789550
SPT(16)	1856478742890424657	0 12 90 102 154 196 202 246 250 294 300 342 394 406 484 496	243020657270
STPT(10)	1856479007667215819	0 2 18 20 30 32 42 44 60 62	507797448432
SPT(16)	1856479023551204947	0 52 60 70 72 90 96 102 124 130 136 154 156 166 174 226	523681437560
STPT(10)	1856479273751974307	0 2 72 74 102 104 132 134 204 206	773882206920
SPT(16)	1856479286811516727	0 10 12 22 66 70 106 112 150 156 192 196 240 250 252 262	786941749340