18
The chair conformation of cyclohexane has D3d symmetry
 1   0.632463146   0.255747040  -2.346403796
 6   0.632463146   0.255747040  -1.250403840
 6   0.774952147   1.805422028   0.720816057
 6  -0.887802910  -0.076798955   0.720816057
 6  -0.632463884   1.373184045   1.162353199
 6  -0.774951886  -0.176491956  -0.808864910
 6   0.887803156   1.705729087  -0.808865864
 1   1.556197751   1.225650509   1.225530010
 1  -0.216094684  -0.780566017   1.225529652
 1  -1.404322993   2.055044373   0.787498634
 1  -1.556197237   0.403279250  -1.313579518
 1   0.216094930   2.409496208  -1.313579399
 1   1.404322196  -0.426113287  -0.875548977
 1   0.872562032   2.867016991   0.975186389
 1  -1.929251145  -0.304607565   0.975187462
 1  -0.632462795   1.373183078   2.258353036
 1  -0.872561727  -1.238086859  -1.063236046
 1   1.929251362   1.933537563  -1.063237239
