transitive_group_id: [18,420]

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

 Stabilizer: C3 x (C9 : C6) 

Density: 1

Join: True 

Spectrum: [(1, 1296), (-1022, 1), (-29, 144), (4, 288), (1894, 1), (436, 2), (25, 144), (-131, 16), (-2, 1008), (31, 16)]