transitive_group_id: [12,188]

 Description: ((C2 x D4 x D4) : C2) : C3 

 Stabilizer: C2 x ((C2 x C2 x C2 x C2) : C2) 

Density: 1

Join: True 

Spectrum: [(1, 336), (15, 36), (-17, 36), (561, 1), (17, 18), (-15, 27), (-207, 2), (-1, 312)]