Extensions 1→N→G→Q→1 with N=C₂ and Q=C₂×Dic₂₁

Direct product G=N×Q with N=C₂ and Q=C₂×Dic₂₁

		d	ρ	Label	ID
C₂²×Dic₂₁		336		C2^2xDic21	336,202

Non-split extensions G=N.Q with N=C₂ and Q=C₂×Dic₂₁

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁(C₂×Dic₂₁) = C₂×C₂₁⋊C₈	central extension (φ=1)	336		C2.1(C2xDic21)	336,95
C₂.₂(C₂×Dic₂₁) = C₄×Dic₂₁	central extension (φ=1)	336		C2.2(C2xDic21)	336,97
C₂.₃(C₂×Dic₂₁) = C₈₄.C₄	central stem extension (φ=1)	168	2	C2.3(C2xDic21)	336,96
C₂.₄(C₂×Dic₂₁) = C₈₄⋊C₄	central stem extension (φ=1)	336		C2.4(C2xDic21)	336,99
C₂.₅(C₂×Dic₂₁) = C₄₂.₃₈D₄	central stem extension (φ=1)	168		C2.5(C2xDic21)	336,105

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