Extensions 1→N→G→Q→1 with N=C₂ and Q=C₉×C₄○D₄

Direct product G=N×Q with N=C₂ and Q=C₉×C₄○D₄

		d	ρ	Label	ID
C₄○D₄×C₁₈		144		C4oD4xC18	288,370

Non-split extensions G=N.Q with N=C₂ and Q=C₉×C₄○D₄

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁(C₉×C₄○D₄) = C₉×C₄²⋊C₂	central extension (φ=1)	144		C2.1(C9xC4oD4)	288,167
C₂.₂(C₉×C₄○D₄) = D₄×C₃₆	central extension (φ=1)	144		C2.2(C9xC4oD4)	288,168
C₂.₃(C₉×C₄○D₄) = Q₈×C₃₆	central extension (φ=1)	288		C2.3(C9xC4oD4)	288,169
C₂.₄(C₉×C₄○D₄) = C₉×C₄⋊D₄	central stem extension (φ=1)	144		C2.4(C9xC4oD4)	288,171
C₂.₅(C₉×C₄○D₄) = C₉×C₂²⋊Q₈	central stem extension (φ=1)	144		C2.5(C9xC4oD4)	288,172
C₂.₆(C₉×C₄○D₄) = C₉×C₂².D₄	central stem extension (φ=1)	144		C2.6(C9xC4oD4)	288,173
C₂.₇(C₉×C₄○D₄) = C₉×C₄.₄D₄	central stem extension (φ=1)	144		C2.7(C9xC4oD4)	288,174
C₂.₈(C₉×C₄○D₄) = C₉×C₄².C₂	central stem extension (φ=1)	288		C2.8(C9xC4oD4)	288,175
C₂.₉(C₉×C₄○D₄) = C₉×C₄²⋊₂C₂	central stem extension (φ=1)	144		C2.9(C9xC4oD4)	288,176

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