Extensions 1→N→G→Q→1 with N=C₂ and Q=D₂₀

Direct product G=N×Q with N=C₂ and Q=D₂₀

		d	ρ	Label	ID
C₂×D₂₀		40		C2xD20	80,37

Non-split extensions G=N.Q with N=C₂ and Q=D₂₀

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁D₂₀ = C₄⋊Dic₅	central extension (φ=1)	80		C2.1D20	80,13
C₂.₂D₂₀ = D₁₀⋊C₄	central extension (φ=1)	40		C2.2D20	80,14
C₂.₃D₂₀ = C₄₀⋊C₂	central stem extension (φ=1)	40	2	C2.3D20	80,6
C₂.₄D₂₀ = D₄₀	central stem extension (φ=1)	40	2+	C2.4D20	80,7
C₂.₅D₂₀ = Dic₂₀	central stem extension (φ=1)	80	2-	C2.5D20	80,8

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