Extensions 1→N→G→Q→1 with N=C₉ and Q=C₂×C₂₀

Direct product G=N×Q with N=C₉ and Q=C₂×C₂₀

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

Semidirect products G=N:Q with N=C₉ and Q=C₂×C₂₀

extension	φ:Q→Aut N	d	ρ	Label	ID
C₉⋊₁(C₂×C₂₀) = D₉×C₂₀	φ: C₂×C₂₀/C₂₀ → C₂ ⊆ Aut C₉	180	2	C9:1(C2xC20)	360,21
C₉⋊₂(C₂×C₂₀) = C₁₀×Dic₉	φ: C₂×C₂₀/C₂×C₁₀ → C₂ ⊆ Aut C₉	360		C9:2(C2xC20)	360,23

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