Extensions 1→N→G→Q→1 with N=C₂ and Q=D₂₀:₄C₄

Direct product G=NxQ with N=C₂ and Q=D₂₀:₄C₄

		d	ρ	Label	ID
C₂xD₂₀:₄C₄		80		C2xD20:4C4	320,554

Non-split extensions G=N.Q with N=C₂ and Q=D₂₀:₄C₄

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁(D₂₀:₄C₄) = Dic₁₀:₃C₈	central extension (φ=1)	320		C2.1(D20:4C4)	320,14
C₂.₂(D₂₀:₄C₄) = D₂₀:₃C₈	central extension (φ=1)	160		C2.2(D20:4C4)	320,17
C₂.₃(D₂₀:₄C₄) = C₄²:₆Dic₅	central extension (φ=1)	80		C2.3(D20:4C4)	320,81
C₂.₄(D₂₀:₄C₄) = (C₂xD₂₀):C₄	central stem extension (φ=1)	80		C2.4(D20:4C4)	320,9
C₂.₅(D₂₀:₄C₄) = C₄:Dic₅:C₄	central stem extension (φ=1)	80		C2.5(D20:4C4)	320,10
C₂.₆(D₂₀:₄C₄) = C₄².D₁₀	central stem extension (φ=1)	160		C2.6(D20:4C4)	320,22
C₂.₇(D₂₀:₄C₄) = C₄².₂D₁₀	central stem extension (φ=1)	320		C2.7(D20:4C4)	320,23

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