3b

#g2 f1 n1 c1 % not almost decomposable bravais-group
3	% generator
 -1 -1 -1
  0  1  0
  0  0  1
3	% generator
 -1  0 0
  1  1 1
  0 -1 0
3	% invariant form
 8 4 4
 4 8 4
 4 4 8
3d0	% additional normalizer
1
3d0	% centralizer
-1
2^4  * 3^1   = 48 % order of the group