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

Direct product G=N×Q with N=C₁₈ and Q=C₁₈

		d	ρ	Label	ID
C₁₈²		324		C18^2	324,81

Semidirect products G=N:Q with N=C₁₈ and Q=C₁₈

extension	φ:Q→Aut N	d	ρ	Label	ID
C₁₈⋊C₁₈ = C₂×C₉⋊C₁₈	φ: C₁₈/C₃ → C₆ ⊆ Aut C₁₈	36	6	C18:C18	324,64
C₁₈⋊₂C₁₈ = C₂²×C₉⋊C₉	φ: C₁₈/C₆ → C₃ ⊆ Aut C₁₈	324		C18:2C18	324,83
C₁₈⋊₃C₁₈ = D₉×C₁₈	φ: C₁₈/C₉ → C₂ ⊆ Aut C₁₈	36	2	C18:3C18	324,61

Non-split extensions G=N.Q with N=C₁₈ and Q=C₁₈

extension	φ:Q→Aut N	d	ρ	Label	ID
C₁₈.C₁₈ = C₉⋊C₃₆	φ: C₁₈/C₃ → C₆ ⊆ Aut C₁₈	36	6	C18.C18	324,9
C₁₈.₂C₁₈ = C₄×C₉⋊C₉	φ: C₁₈/C₆ → C₃ ⊆ Aut C₁₈	324		C18.2C18	324,28
C₁₈.₃C₁₈ = C₄×C₂₇⋊C₃	φ: C₁₈/C₆ → C₃ ⊆ Aut C₁₈	108	3	C18.3C18	324,30
C₁₈.₄C₁₈ = C₂²×C₂₇⋊C₃	φ: C₁₈/C₆ → C₃ ⊆ Aut C₁₈	108		C18.4C18	324,85
C₁₈.₅C₁₈ = C₉×Dic₉	φ: C₁₈/C₉ → C₂ ⊆ Aut C₁₈	36	2	C18.5C18	324,6

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