transitive_group_id: [18,470]

 Description: (C3 x C3 x C3 x C3) : (C8 . D4 = C4 . (C8 x C2)) 

 Stabilizer: C4 x ((C3 x C3) : C8) 

Density: 1

Join: True 

Spectrum: [(2656, 1), (-2528, 1), (64, 62), (1, 4096), (-8, 1024)]