Extensions 1→N→G→Q→1 with N=C₂₁⋊₇D₄ and Q=C₂

Direct product G=N×Q with N=C₂₁⋊₇D₄ and Q=C₂

		d	ρ	Label	ID
C₂×C₂₁⋊₇D₄		168		C2xC21:7D4	336,203

Semidirect products G=N:Q with N=C₂₁⋊₇D₄ and Q=C₂

extension	φ:Q→Out N	d	ρ	Label	ID
C₂₁⋊₇D₄⋊₁C₂ = D₄×D₂₁	φ: C₂/C₁ → C₂ ⊆ Out C₂₁⋊₇D₄	84	4+	C21:7D4:1C2	336,198
C₂₁⋊₇D₄⋊₂C₂ = D₄⋊₂D₂₁	φ: C₂/C₁ → C₂ ⊆ Out C₂₁⋊₇D₄	168	4-	C21:7D4:2C2	336,199
C₂₁⋊₇D₄⋊₃C₂ = Dic₇.D₆	φ: C₂/C₁ → C₂ ⊆ Out C₂₁⋊₇D₄	168	4	C21:7D4:3C2	336,152
C₂₁⋊₇D₄⋊₄C₂ = Dic₃.D₁₄	φ: C₂/C₁ → C₂ ⊆ Out C₂₁⋊₇D₄	168	4	C21:7D4:4C2	336,155
C₂₁⋊₇D₄⋊₅C₂ = D₇×C₃⋊D₄	φ: C₂/C₁ → C₂ ⊆ Out C₂₁⋊₇D₄	84	4	C21:7D4:5C2	336,161
C₂₁⋊₇D₄⋊₆C₂ = S₃×C₇⋊D₄	φ: C₂/C₁ → C₂ ⊆ Out C₂₁⋊₇D₄	84	4	C21:7D4:6C2	336,162
C₂₁⋊₇D₄⋊₇C₂ = D₈₄⋊₁₁C₂	φ: trivial image	168	2	C21:7D4:7C2	336,197

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