Extensions 1→N→G→Q→1 with N=C₂ and Q=C₈.₁₈D₄

Direct product G=N×Q with N=C₂ and Q=C₈.₁₈D₄

		d	ρ	Label	ID
C₂×C₈.₁₈D₄		64		C2xC8.18D4	128,1781

Non-split extensions G=N.Q with N=C₂ and Q=C₈.₁₈D₄

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁(C₈.₁₈D₄) = C₂³.₂₂D₈	central extension (φ=1)	64		C2.1(C8.18D4)	128,540
C₂.₂(C₈.₁₈D₄) = C₂⁴.₁₃₅D₄	central extension (φ=1)	64		C2.2(C8.18D4)	128,624
C₂.₃(C₈.₁₈D₄) = C₂.(C₈⋊₈D₄)	central extension (φ=1)	128		C2.3(C8.18D4)	128,665
C₂.₄(C₈.₁₈D₄) = C₈⋊₅(C₄⋊C₄)	central extension (φ=1)	128		C2.4(C8.18D4)	128,674
C₂.₅(C₈.₁₈D₄) = (C₂×C₄)⋊₆Q₁₆	central extension (φ=1)	128		C2.5(C8.18D4)	128,701
C₂.₆(C₈.₁₈D₄) = C₈.₂₈D₈	central stem extension (φ=1)	64		C2.6(C8.18D4)	128,401
C₂.₇(C₈.₁₈D₄) = Q₈⋊₁Q₁₆	central stem extension (φ=1)	128		C2.7(C8.18D4)	128,402
C₂.₈(C₈.₁₈D₄) = D₄.₁Q₁₆	central stem extension (φ=1)	64		C2.8(C8.18D4)	128,407
C₂.₉(C₈.₁₈D₄) = Q₈.₁Q₁₆	central stem extension (φ=1)	128		C2.9(C8.18D4)	128,408
C₂.₁₀(C₈.₁₈D₄) = D₄.Q₁₆	central stem extension (φ=1)	64		C2.10(C8.18D4)	128,415
C₂.₁₁(C₈.₁₈D₄) = Q₈.₂Q₁₆	central stem extension (φ=1)	128		C2.11(C8.18D4)	128,416
C₂.₁₂(C₈.₁₈D₄) = C₂³⋊₂Q₁₆	central stem extension (φ=1)	64		C2.12(C8.18D4)	128,733
C₂.₁₃(C₈.₁₈D₄) = C₂⁴.₈₆D₄	central stem extension (φ=1)	64		C2.13(C8.18D4)	128,768
C₂.₁₄(C₈.₁₈D₄) = (C₂×C₄)⋊₃Q₁₆	central stem extension (φ=1)	128		C2.14(C8.18D4)	128,788
C₂.₁₅(C₈.₁₈D₄) = (C₂×C₈).₅₂D₄	central stem extension (φ=1)	128		C2.15(C8.18D4)	128,800
C₂.₁₆(C₈.₁₈D₄) = C₂⁴.₈₈D₄	central stem extension (φ=1)	64		C2.16(C8.18D4)	128,808
C₂.₁₇(C₈.₁₈D₄) = (C₂×C₄).₂₁Q₁₆	central stem extension (φ=1)	128		C2.17(C8.18D4)	128,819

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