Extensions 1→N→G→Q→1 with N=C₂ and Q=C₂³.₁₉D₄

Direct product G=N×Q with N=C₂ and Q=C₂³.₁₉D₄

		d	ρ	Label	ID
C₂×C₂³.₁₉D₄		64		C2xC2^3.19D4	128,1819

Non-split extensions G=N.Q with N=C₂ and Q=C₂³.₁₉D₄

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁(C₂³.₁₉D₄) = C₂⁴.₆₉D₄	central extension (φ=1)	64		C2.1(C2^3.19D4)	128,557
C₂.₂(C₂³.₁₉D₄) = C₂⁴.₇₁D₄	central extension (φ=1)	64		C2.2(C2^3.19D4)	128,586
C₂.₃(C₂³.₁₉D₄) = C₂⁴.₇₄D₄	central extension (φ=1)	64		C2.3(C2^3.19D4)	128,607
C₂.₄(C₂³.₁₉D₄) = C₄.Q₈⋊₁₀C₄	central extension (φ=1)	128		C2.4(C2^3.19D4)	128,652
C₂.₅(C₂³.₁₉D₄) = C₂.D₈⋊₅C₄	central extension (φ=1)	128		C2.5(C2^3.19D4)	128,653
C₂.₆(C₂³.₁₉D₄) = D₄⋊C₄⋊C₄	central extension (φ=1)	64		C2.6(C2^3.19D4)	128,657
C₂.₇(C₂³.₁₉D₄) = C₄.₆₇(C₄×D₄)	central extension (φ=1)	64		C2.7(C2^3.19D4)	128,658
C₂.₈(C₂³.₁₉D₄) = C₂⁴.₈₃D₄	central stem extension (φ=1)	64		C2.8(C2^3.19D4)	128,765
C₂.₉(C₂³.₁₉D₄) = C₂⁴.₈₄D₄	central stem extension (φ=1)	64		C2.9(C2^3.19D4)	128,766
C₂.₁₀(C₂³.₁₉D₄) = C₄²⋊₈C₄⋊C₂	central stem extension (φ=1)	64		C2.10(C2^3.19D4)	128,805
C₂.₁₁(C₂³.₁₉D₄) = C₂⁴.₈₈D₄	central stem extension (φ=1)	64		C2.11(C2^3.19D4)	128,808
C₂.₁₂(C₂³.₁₉D₄) = C₂⁴.₈₉D₄	central stem extension (φ=1)	64		C2.12(C2^3.19D4)	128,809
C₂.₁₃(C₂³.₁₉D₄) = (C₂×C₈).₂₄Q₈	central stem extension (φ=1)	128		C2.13(C2^3.19D4)	128,817
C₂.₁₄(C₂³.₁₉D₄) = (C₂×C₈).₁₆₈D₄	central stem extension (φ=1)	64		C2.14(C2^3.19D4)	128,824
C₂.₁₅(C₂³.₁₉D₄) = C₄⋊C₄.Q₈	central stem extension (φ=1)	128		C2.15(C2^3.19D4)	128,833

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