transitive_group_id: [18,634]

 Description: (C3 x C3 x C3 x C3) : ((C8 x C8) : C4) 

 Stabilizer: (C3 x C3) : ((C8 x C8) : C2) 

Density: 1

Join: True 

Spectrum: [(11008, 1), (-9728, 1), (-512, 8), (64, 752), (640, 6), (10, 8192), (-80, 512), (-8, 11264)]