Extensions 1→N→G→Q→1 with N=C₂ and Q=C₈.₂D₄

Direct product G=N×Q with N=C₂ and Q=C₈.₂D₄

		d	ρ	Label	ID
C₂×C₈.₂D₄		64		C2xC8.2D4	128,1881

Non-split extensions G=N.Q with N=C₂ and Q=C₈.₂D₄

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁(C₈.₂D₄) = C₄².₂₆Q₈	central extension (φ=1)	128		C2.1(C8.2D4)	128,579
C₂.₂(C₈.₂D₄) = C₄².₁₁₀D₄	central extension (φ=1)	64		C2.2(C8.2D4)	128,691
C₂.₃(C₈.₂D₄) = C₄².₁₁₁D₄	central extension (φ=1)	128		C2.3(C8.2D4)	128,692
C₂.₄(C₈.₂D₄) = (C₂×Q₁₆)⋊₁₀C₄	central extension (φ=1)	128		C2.4(C8.2D4)	128,703
C₂.₅(C₈.₂D₄) = C₈⋊(C₂²⋊C₄)	central extension (φ=1)	64		C2.5(C8.2D4)	128,705
C₂.₆(C₈.₂D₄) = C₈⋊₅SD₁₆	central stem extension (φ=1)	64		C2.6(C8.2D4)	128,446
C₂.₇(C₈.₂D₄) = C₈.₉SD₁₆	central stem extension (φ=1)	128		C2.7(C8.2D4)	128,448
C₂.₈(C₈.₂D₄) = C₄².₆₆₅C₂³	central stem extension (φ=1)	128		C2.8(C8.2D4)	128,450
C₂.₉(C₈.₂D₄) = C₄².₆₆₆C₂³	central stem extension (φ=1)	64		C2.9(C8.2D4)	128,451
C₂.₁₀(C₈.₂D₄) = C₄².₆₆₇C₂³	central stem extension (φ=1)	64		C2.10(C8.2D4)	128,452
C₂.₁₁(C₈.₂D₄) = C₈.₂D₈	central stem extension (φ=1)	64		C2.11(C8.2D4)	128,454
C₂.₁₂(C₈.₂D₄) = C₈⋊₃Q₁₆	central stem extension (φ=1)	128		C2.12(C8.2D4)	128,455
C₂.₁₃(C₈.₂D₄) = (C₂×C₄)⋊₃SD₁₆	central stem extension (φ=1)	64		C2.13(C8.2D4)	128,745
C₂.₁₄(C₈.₂D₄) = (C₂×C₈).₄₁D₄	central stem extension (φ=1)	64		C2.14(C8.2D4)	128,747
C₂.₁₅(C₈.₂D₄) = (C₂×C₄)⋊₂Q₁₆	central stem extension (φ=1)	128		C2.15(C8.2D4)	128,748
C₂.₁₆(C₈.₂D₄) = (C₂×C₄).₂₇D₈	central stem extension (φ=1)	64		C2.16(C8.2D4)	128,825
C₂.₁₇(C₈.₂D₄) = (C₂×C₈).₁₇₀D₄	central stem extension (φ=1)	128		C2.17(C8.2D4)	128,828
C₂.₁₈(C₈.₂D₄) = (C₂×C₈).₁₇₁D₄	central stem extension (φ=1)	128		C2.18(C8.2D4)	128,829

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