Extensions 1→N→G→Q→1 with N=C₂ and Q=C₂₀⋊₄D₄

Direct product G=N×Q with N=C₂ and Q=C₂₀⋊₄D₄

		d	ρ	Label	ID
C₂×C₂₀⋊₄D₄		160		C2xC20:4D4	320,1147

Non-split extensions G=N.Q with N=C₂ and Q=C₂₀⋊₄D₄

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁(C₂₀⋊₄D₄) = C₄²⋊₈Dic₅	central extension (φ=1)	320		C2.1(C20:4D4)	320,562
C₂.₂(C₂₀⋊₄D₄) = (C₂×C₄)⋊₆D₂₀	central extension (φ=1)	160		C2.2(C20:4D4)	320,566
C₂.₃(C₂₀⋊₄D₄) = (C₂×C₂₀)⋊₅D₄	central stem extension (φ=1)	160		C2.3(C20:4D4)	320,298
C₂.₄(C₂₀⋊₄D₄) = (C₂×C₂₀).₃₃D₄	central stem extension (φ=1)	160		C2.4(C20:4D4)	320,304
C₂.₅(C₂₀⋊₄D₄) = C₈⋊₅D₂₀	central stem extension (φ=1)	160		C2.5(C20:4D4)	320,320
C₂.₆(C₂₀⋊₄D₄) = C₂₀⋊₄D₈	central stem extension (φ=1)	160		C2.6(C20:4D4)	320,322
C₂.₇(C₂₀⋊₄D₄) = C₈.₈D₂₀	central stem extension (φ=1)	160		C2.7(C20:4D4)	320,323
C₂.₈(C₂₀⋊₄D₄) = C₂₀⋊₄Q₁₆	central stem extension (φ=1)	320		C2.8(C20:4D4)	320,326
C₂.₉(C₂₀⋊₄D₄) = C₈⋊D₂₀	central stem extension (φ=1)	160		C2.9(C20:4D4)	320,339
C₂.₁₀(C₂₀⋊₄D₄) = C₈.D₂₀	central stem extension (φ=1)	160		C2.10(C20:4D4)	320,342

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