Extensions 1→N→G→Q→1 with N=C₂ and Q=C₂xD₄₀

Direct product G=NxQ with N=C₂ and Q=C₂xD₄₀

		d	ρ	Label	ID
C₂²xD₄₀		160		C2^2xD40	320,1412

Non-split extensions G=N.Q with N=C₂ and Q=C₂xD₄₀

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁(C₂xD₄₀) = C₄xD₄₀	central extension (φ=1)	160		C2.1(C2xD40)	320,319
C₂.₂(C₂xD₄₀) = C₂xC₄₀:₅C₄	central extension (φ=1)	320		C2.2(C2xD40)	320,732
C₂.₃(C₂xD₄₀) = C₂xD₂₀:₅C₄	central extension (φ=1)	160		C2.3(C2xD40)	320,739
C₂.₄(C₂xD₄₀) = C₄₀:₈Q₈	central stem extension (φ=1)	320		C2.4(C2xD40)	320,309
C₂.₅(C₂xD₄₀) = C₄.₅D₄₀	central stem extension (φ=1)	160		C2.5(C2xD40)	320,321
C₂.₆(C₂xD₄₀) = C₂₀:₄D₈	central stem extension (φ=1)	160		C2.6(C2xD40)	320,322
C₂.₇(C₂xD₄₀) = D₂₀:₁₃D₄	central stem extension (φ=1)	80		C2.7(C2xD40)	320,359
C₂.₈(C₂xD₄₀) = C₂².D₄₀	central stem extension (φ=1)	160		C2.8(C2xD40)	320,363
C₂.₉(C₂xD₄₀) = C₄:D₄₀	central stem extension (φ=1)	160		C2.9(C2xD40)	320,470
C₂.₁₀(C₂xD₄₀) = D₂₀:₄Q₈	central stem extension (φ=1)	160		C2.10(C2xD40)	320,473
C₂.₁₁(C₂xD₄₀) = C₂xD₈₀	central stem extension (φ=1)	160		C2.11(C2xD40)	320,529
C₂.₁₂(C₂xD₄₀) = C₂xC₁₆:D₅	central stem extension (φ=1)	160		C2.12(C2xD40)	320,530
C₂.₁₃(C₂xD₄₀) = D₈₀:₇C₂	central stem extension (φ=1)	160	2	C2.13(C2xD40)	320,531
C₂.₁₄(C₂xD₄₀) = C₂xDic₄₀	central stem extension (φ=1)	320		C2.14(C2xD40)	320,532
C₂.₁₅(C₂xD₄₀) = D₈₀:C₂	central stem extension (φ=1)	80	4+	C2.15(C2xD40)	320,535
C₂.₁₆(C₂xD₄₀) = C₁₆.D₁₀	central stem extension (φ=1)	160	4-	C2.16(C2xD40)	320,536
C₂.₁₇(C₂xD₄₀) = C₄₀:₂₉D₄	central stem extension (φ=1)	160		C2.17(C2xD40)	320,742

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