Extensions 1→N→G→Q→1 with N=C₂ and Q=C₄².C₂²

Direct product G=N×Q with N=C₂ and Q=C₄².C₂²

		d	ρ	Label	ID
C₂×C₄².C₂²		64		C2xC4^2.C2^2	128,254

Non-split extensions G=N.Q with N=C₂ and Q=C₄².C₂²

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁(C₄².C₂²) = (C₂×C₄).₉₈D₈	central extension (φ=1)	64		C2.1(C4^2.C2^2)	128,2
C₂.₂(C₄².C₂²) = (C₂×Q₈)⋊C₈	central extension (φ=1)	128		C2.2(C4^2.C2^2)	128,4
C₂.₃(C₄².C₂²) = C₄².₇Q₈	central extension (φ=1)	128		C2.3(C4^2.C2^2)	128,27
C₂.₄(C₄².C₂²) = C₄.C₄≀C₂	central stem extension (φ=1)	16	8+	C2.4(C4^2.C2^2)	128,87
C₂.₅(C₄².C₂²) = C₄².(C₂×C₄)	central stem extension (φ=1)	32	8-	C2.5(C4^2.C2^2)	128,88

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