Extensions 1→N→G→Q→1 with N=C₂ and Q=C₂₀⋊D₅

Direct product G=N×Q with N=C₂ and Q=C₂₀⋊D₅

		d	ρ	Label	ID
C₂×C₂₀⋊D₅		200		C2xC20:D5	400,193

Non-split extensions G=N.Q with N=C₂ and Q=C₂₀⋊D₅

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁(C₂₀⋊D₅) = C₂₀⋊₃Dic₅	central extension (φ=1)	400		C2.1(C20:D5)	400,101
C₂.₂(C₂₀⋊D₅) = C₁₀.₁₁D₂₀	central extension (φ=1)	200		C2.2(C20:D5)	400,102
C₂.₃(C₂₀⋊D₅) = C₄₀⋊₂D₅	central stem extension (φ=1)	200		C2.3(C20:D5)	400,94
C₂.₄(C₂₀⋊D₅) = C₅²⋊₅D₈	central stem extension (φ=1)	200		C2.4(C20:D5)	400,95
C₂.₅(C₂₀⋊D₅) = C₄₀.D₅	central stem extension (φ=1)	400		C2.5(C20:D5)	400,96

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