Extensions 1→N→G→Q→1 with N=C₂ and Q=D₄.₉D₄

Direct product G=N×Q with N=C₂ and Q=D₄.₉D₄

		d	ρ	Label	ID
C₂×D₄.₉D₄		32		C2xD4.9D4	128,1747

Non-split extensions G=N.Q with N=C₂ and Q=D₄.₉D₄

extension	φ:Q→Aut N	d	Label	ID
C₂.₁(D₄.₉D₄) = 2₊¹⁺⁴⋊₃C₄	central extension (φ=1)	32	C2.1(D4.9D4)	128,524
C₂.₂(D₄.₉D₄) = C₂⁴.₂₁D₄	central extension (φ=1)	32	C2.2(D4.9D4)	128,588
C₂.₃(D₄.₉D₄) = C₄²⋊₉(C₂×C₄)	central extension (φ=1)	32	C2.3(D4.9D4)	128,592
C₂.₄(D₄.₉D₄) = C₈.C₂²⋊C₄	central extension (φ=1)	32	C2.4(D4.9D4)	128,614
C₂.₅(D₄.₉D₄) = C₂⁴.₂₃D₄	central extension (φ=1)	32	C2.5(D4.9D4)	128,617
C₂.₆(D₄.₉D₄) = C₂³⋊₂SD₁₆	central stem extension (φ=1)	32	C2.6(D4.9D4)	128,333
C₂.₇(D₄.₉D₄) = C₂³⋊Q₁₆	central stem extension (φ=1)	32	C2.7(D4.9D4)	128,334
C₂.₈(D₄.₉D₄) = C₂⁴.₁₂D₄	central stem extension (φ=1)	32	C2.8(D4.9D4)	128,338
C₂.₉(D₄.₉D₄) = C₂³.₅D₈	central stem extension (φ=1)	32	C2.9(D4.9D4)	128,339
C₂.₁₀(D₄.₉D₄) = C₂⁴.₁₄D₄	central stem extension (φ=1)	32	C2.10(D4.9D4)	128,340
C₂.₁₁(D₄.₉D₄) = C₂⁴.₁₅D₄	central stem extension (φ=1)	32	C2.11(D4.9D4)	128,344
C₂.₁₂(D₄.₉D₄) = D₄.D₈	central stem extension (φ=1)	32	C2.12(D4.9D4)	128,371
C₂.₁₃(D₄.₉D₄) = C₄².₂₀₁C₂³	central stem extension (φ=1)	64	C2.13(D4.9D4)	128,372
C₂.₁₄(D₄.₉D₄) = Q₈.D₈	central stem extension (φ=1)	64	C2.14(D4.9D4)	128,373
C₂.₁₅(D₄.₉D₄) = Q₈⋊₃SD₁₆	central stem extension (φ=1)	64	C2.15(D4.9D4)	128,374
C₂.₁₆(D₄.₉D₄) = D₄.₅SD₁₆	central stem extension (φ=1)	64	C2.16(D4.9D4)	128,375
C₂.₁₇(D₄.₉D₄) = D₄⋊₃Q₁₆	central stem extension (φ=1)	64	C2.17(D4.9D4)	128,376
C₂.₁₈(D₄.₉D₄) = Q₈⋊₃Q₁₆	central stem extension (φ=1)	128	C2.18(D4.9D4)	128,377
C₂.₁₉(D₄.₉D₄) = C₄².₂₀₇C₂³	central stem extension (φ=1)	64	C2.19(D4.9D4)	128,378
C₂.₂₀(D₄.₉D₄) = C₄².₅C₂³	central stem extension (φ=1)	32	C2.20(D4.9D4)	128,391
C₂.₂₁(D₄.₉D₄) = C₄².₇C₂³	central stem extension (φ=1)	64	C2.21(D4.9D4)	128,393
C₂.₂₂(D₄.₉D₄) = C₄².₈C₂³	central stem extension (φ=1)	64	C2.22(D4.9D4)	128,394
C₂.₂₃(D₄.₉D₄) = C₄².₁₀C₂³	central stem extension (φ=1)	64	C2.23(D4.9D4)	128,396
C₂.₂₄(D₄.₉D₄) = C₄²⋊₁₀D₄	central stem extension (φ=1)	32	C2.24(D4.9D4)	128,736
C₂.₂₅(D₄.₉D₄) = M₄(2)⋊₄D₄	central stem extension (φ=1)	32	C2.25(D4.9D4)	128,739
C₂.₂₆(D₄.₉D₄) = (C₂×Q₈)⋊₂Q₈	central stem extension (φ=1)	32	C2.26(D4.9D4)	128,760
C₂.₂₇(D₄.₉D₄) = M₄(2)⋊₆D₄	central stem extension (φ=1)	32	C2.27(D4.9D4)	128,769
C₂.₂₈(D₄.₉D₄) = C₄²⋊₁₂D₄	central stem extension (φ=1)	32	C2.28(D4.9D4)	128,772
C₂.₂₉(D₄.₉D₄) = C₄²⋊₃Q₈	central stem extension (φ=1)	32	C2.29(D4.9D4)	128,793

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Extensions 1→N→G→Q→1 with N=C2 and Q=D4.9D4

Extensions 1→N→G→Q→1 with N=C₂ and Q=D₄.₉D₄