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

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

		d	ρ	Label	ID
C₂×C₈.D₄		64		C2xC8.D4	128,1785

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

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁(C₈.D₄) = C₂⁴.₆₇D₄	central extension (φ=1)	64		C2.1(C8.D4)	128,541
C₂.₂(C₈.D₄) = C₂⁴.₇₅D₄	central extension (φ=1)	64		C2.2(C8.D4)	128,626
C₂.₃(C₈.D₄) = C₂.(C₈⋊D₄)	central extension (φ=1)	128		C2.3(C8.D4)	128,667
C₂.₄(C₈.D₄) = C₈⋊(C₄⋊C₄)	central extension (φ=1)	128		C2.4(C8.D4)	128,676
C₂.₅(C₈.D₄) = (C₂×Q₁₆)⋊₁₀C₄	central extension (φ=1)	128		C2.5(C8.D4)	128,703
C₂.₆(C₈.D₄) = C₈.D₈	central stem extension (φ=1)	64		C2.6(C8.D4)	128,421
C₂.₇(C₈.D₄) = C₈.SD₁₆	central stem extension (φ=1)	128		C2.7(C8.D4)	128,422
C₂.₈(C₈.D₄) = C₈.₈SD₁₆	central stem extension (φ=1)	64		C2.8(C8.D4)	128,427
C₂.₉(C₈.D₄) = C₈.₃Q₁₆	central stem extension (φ=1)	128		C2.9(C8.D4)	128,428
C₂.₁₀(C₈.D₄) = C₄².₂₅₄C₂³	central stem extension (φ=1)	64		C2.10(C8.D4)	128,435
C₂.₁₁(C₈.D₄) = C₄².₂₅₅C₂³	central stem extension (φ=1)	128		C2.11(C8.D4)	128,436
C₂.₁₂(C₈.D₄) = C₂³⋊₂Q₁₆	central stem extension (φ=1)	64		C2.12(C8.D4)	128,733
C₂.₁₃(C₈.D₄) = C₂⁴.₈₅D₄	central stem extension (φ=1)	64		C2.13(C8.D4)	128,767
C₂.₁₄(C₈.D₄) = (C₂×C₄)⋊₃Q₁₆	central stem extension (φ=1)	128		C2.14(C8.D4)	128,788
C₂.₁₅(C₈.D₄) = (C₂×Q₈).₈Q₈	central stem extension (φ=1)	128		C2.15(C8.D4)	128,798
C₂.₁₆(C₈.D₄) = C₂³.₁₂D₈	central stem extension (φ=1)	64		C2.16(C8.D4)	128,807
C₂.₁₇(C₈.D₄) = (C₂×C₄).₂₆D₈	central stem extension (φ=1)	128		C2.17(C8.D4)	128,818

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