Extensions 1→N→G→Q→1 with N=C₂ and Q=D₁₈⋊C₄

Direct product G=N×Q with N=C₂ and Q=D₁₈⋊C₄

		d	ρ	Label	ID
C₂×D₁₈⋊C₄		144		C2xD18:C4	288,137

Non-split extensions G=N.Q with N=C₂ and Q=D₁₈⋊C₄

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁(D₁₈⋊C₄) = D₁₈⋊C₈	central extension (φ=1)	144		C2.1(D18:C4)	288,27
C₂.₂(D₁₈⋊C₄) = C₁₈.C₄²	central extension (φ=1)	288		C2.2(D18:C4)	288,38
C₂.₃(D₁₈⋊C₄) = C₄²⋊₄D₉	central stem extension (φ=1)	72	2	C2.3(D18:C4)	288,12
C₂.₄(D₁₈⋊C₄) = C₂².D₃₆	central stem extension (φ=1)	72	4	C2.4(D18:C4)	288,13
C₂.₅(D₁₈⋊C₄) = C₁₈.Q₁₆	central stem extension (φ=1)	288		C2.5(D18:C4)	288,16
C₂.₆(D₁₈⋊C₄) = C₁₈.D₈	central stem extension (φ=1)	144		C2.6(D18:C4)	288,17
C₂.₇(D₁₈⋊C₄) = C₃₆.₄₅D₄	central stem extension (φ=1)	288		C2.7(D18:C4)	288,24
C₂.₈(D₁₈⋊C₄) = C₂.D₇₂	central stem extension (φ=1)	144		C2.8(D18:C4)	288,28
C₂.₉(D₁₈⋊C₄) = C₄.D₃₆	central stem extension (φ=1)	144	4-	C2.9(D18:C4)	288,30
C₂.₁₀(D₁₈⋊C₄) = C₃₆.₄₈D₄	central stem extension (φ=1)	72	4+	C2.10(D18:C4)	288,31
C₂.₁₁(D₁₈⋊C₄) = Dic₁₈⋊C₄	central stem extension (φ=1)	72	4	C2.11(D18:C4)	288,32

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