Extensions 1→N→G→Q→1 with N=C₁₈ and Q=C₂₀

Direct product G=N×Q with N=C₁₈ and Q=C₂₀

		d	ρ	Label	ID
C₂×C₁₈₀		360		C2xC180	360,30

Semidirect products G=N:Q with N=C₁₈ and Q=C₂₀

extension	φ:Q→Aut N	d	ρ	Label	ID
C₁₈⋊C₂₀ = C₁₀×Dic₉	φ: C₂₀/C₁₀ → C₂ ⊆ Aut C₁₈	360		C18:C20	360,23

Non-split extensions G=N.Q with N=C₁₈ and Q=C₂₀

extension	φ:Q→Aut N	d	ρ	Label	ID
C₁₈.C₂₀ = C₅×C₉⋊C₈	φ: C₂₀/C₁₀ → C₂ ⊆ Aut C₁₈	360	2	C18.C20	360,1

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Extensions 1→N→G→Q→1 with N=C18 and Q=C20