Extensions 1→N→G→Q→1 with N=C₂ and Q=C₂₀.D₄

Direct product G=N×Q with N=C₂ and Q=C₂₀.D₄

		d	ρ	Label	ID
C₂×C₂₀.D₄		80		C2xC20.D4	320,843

Non-split extensions G=N.Q with N=C₂ and Q=C₂₀.D₄

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁(C₂₀.D₄) = C₂⁴.Dic₅	central extension (φ=1)	80		C2.1(C20.D4)	320,83
C₂.₂(C₂₀.D₄) = (C₂×C₂₀).Q₈	central extension (φ=1)	160		C2.2(C20.D4)	320,88
C₂.₃(C₂₀.D₄) = C₄².₇D₁₀	central stem extension (φ=1)	160		C2.3(C20.D4)	320,98
C₂.₄(C₂₀.D₄) = C₂₀.₉D₈	central stem extension (φ=1)	160		C2.4(C20.D4)	320,102
C₂.₅(C₂₀.D₄) = C₂₀.₅Q₁₆	central stem extension (φ=1)	320		C2.5(C20.D4)	320,104

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