Extensions 1→N→G→Q→1 with N=C₂₁⋊D₄ and Q=C₂

Direct product G=N×Q with N=C₂₁⋊D₄ and Q=C₂

		d	ρ	Label	ID
C₂×C₂₁⋊D₄		168		C2xC21:D4	336,157

Semidirect products G=N:Q with N=C₂₁⋊D₄ and Q=C₂

extension	φ:Q→Out N	d	ρ	Label	ID
C₂₁⋊D₄⋊₁C₂ = D₂₈⋊₅S₃	φ: C₂/C₁ → C₂ ⊆ Out C₂₁⋊D₄	168	4-	C21:D4:1C2	336,138
C₂₁⋊D₄⋊₂C₂ = D₁₂⋊₅D₇	φ: C₂/C₁ → C₂ ⊆ Out C₂₁⋊D₄	168	4-	C21:D4:2C2	336,145
C₂₁⋊D₄⋊₃C₂ = C₂₈⋊D₆	φ: C₂/C₁ → C₂ ⊆ Out C₂₁⋊D₄	84	4	C21:D4:3C2	336,150
C₂₁⋊D₄⋊₄C₂ = C₄₂.C₂³	φ: C₂/C₁ → C₂ ⊆ Out C₂₁⋊D₄	168	4-	C21:D4:4C2	336,153
C₂₁⋊D₄⋊₅C₂ = D₇×C₃⋊D₄	φ: C₂/C₁ → C₂ ⊆ Out C₂₁⋊D₄	84	4	C21:D4:5C2	336,161
C₂₁⋊D₄⋊₆C₂ = S₃×C₇⋊D₄	φ: C₂/C₁ → C₂ ⊆ Out C₂₁⋊D₄	84	4	C21:D4:6C2	336,162
C₂₁⋊D₄⋊₇C₂ = D₆.D₁₄	φ: trivial image	168	4	C21:D4:7C2	336,144

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