transitive_group_id: [18,246]

 Description: ((C3 x C3) . ((C3 x C3) : C3) = (C3 x C3 x C3) . (C3 x C3)) : C4 

 Stabilizer: C9 : C6 

Density: 1

Join: True 

Spectrum: [(1, 432), (4, 72), (7, 144), (13, 16), (-338, 1), (148, 2), (-11, 144), (-41, 16), (634, 1), (-2, 144)]