Extensions 1→N→G→Q→1 with N=C18 and Q=C12

Direct product G=NxQ with N=C18 and Q=C12
dρLabelID
C6xC36216C6xC36216,73

Semidirect products G=N:Q with N=C18 and Q=C12
extensionφ:Q→Aut NdρLabelID
C18:C12 = C2xC9:C12φ: C12/C2C6 ⊆ Aut C1872C18:C12216,61
C18:2C12 = C2xC4x3- 1+2φ: C12/C4C3 ⊆ Aut C1872C18:2C12216,75
C18:3C12 = C6xDic9φ: C12/C6C2 ⊆ Aut C1872C18:3C12216,55

Non-split extensions G=N.Q with N=C18 and Q=C12
extensionφ:Q→Aut NdρLabelID
C18.C12 = C9:C24φ: C12/C2C6 ⊆ Aut C18726C18.C12216,15
C18.2C12 = C8x3- 1+2φ: C12/C4C3 ⊆ Aut C18723C18.2C12216,20
C18.3C12 = C3xC9:C8φ: C12/C6C2 ⊆ Aut C18722C18.3C12216,12

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