gap> G:=SpaceGroup(3,165);;
gap> G:=Image(IsomorphismPcpGroup(G));;
gap> R:=ResolutionAlmostCrystalGroup(G,20);
Resolution of length 20 in characteristic 0 for Pcp-group with orders 
[ 3, 2, 0, 0, 0 ] . 

gap> Size(R);
[ 10, 49, 117, 195, 273, 351, 429, 507, 585, 663, 741, 819, 897, 975, 1053, 
  1131, 1209, 1287, 1365, 1443 ]
