Extensions 1→N→G→Q→1 with N=C₂ and Q=C₂≀C₄

Direct product G=N×Q with N=C₂ and Q=C₂≀C₄

		d	ρ	Label	ID
C₂×C₂≀C₄		16		C2xC2wrC4	128,850

Non-split extensions G=N.Q with N=C₂ and Q=C₂≀C₄

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁C₂≀C₄ = C₂⁴⋊C₈	central extension (φ=1)	16		C2.1C2wrC4	128,48
C₂.₂C₂≀C₄ = C₂³.₂M₄(2)	central extension (φ=1)	32		C2.2C2wrC4	128,58
C₂.₃C₂≀C₄ = C₂⁴.₅D₄	central extension (φ=1)	32		C2.3C2wrC4	128,122
C₂.₄C₂≀C₄ = C₂⁴.D₄	central stem extension (φ=1)	16		C2.4C2wrC4	128,75
C₂.₅C₂≀C₄ = C₂.C₂≀C₄	central stem extension (φ=1)	32		C2.5C2wrC4	128,77
C₂.₆C₂≀C₄ = C₂³.Q₁₆	central stem extension (φ=1)	32		C2.6C2wrC4	128,83
C₂.₇C₂≀C₄ = C₂.₇C₂≀C₄	central stem extension (φ=1)	32		C2.7C2wrC4	128,86
C₂.₈C₂≀C₄ = C₄².D₄	central stem extension (φ=1)	16	4+	C2.8C2wrC4	128,134
C₂.₉C₂≀C₄ = C₄².₂D₄	central stem extension (φ=1)	16	4	C2.9C2wrC4	128,135
C₂.₁₀C₂≀C₄ = C₄².₃D₄	central stem extension (φ=1)	16	4	C2.10C2wrC4	128,136
C₂.₁₁C₂≀C₄ = C₄².₄D₄	central stem extension (φ=1)	16	4-	C2.11C2wrC4	128,137

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