Extensions 1→N→G→Q→1 with N=C₂ and Q=C₂²×C₁₈

Direct product G=N×Q with N=C₂ and Q=C₂²×C₁₈

		d	ρ	Label	ID
C₂³×C₁₈		144		C2^3xC18	144,113

Non-split extensions G=N.Q with N=C₂ and Q=C₂²×C₁₈

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁(C₂²×C₁₈) = D₄×C₁₈	central stem extension (φ=1)	72		C2.1(C2^2xC18)	144,48
C₂.₂(C₂²×C₁₈) = Q₈×C₁₈	central stem extension (φ=1)	144		C2.2(C2^2xC18)	144,49
C₂.₃(C₂²×C₁₈) = C₉×C₄○D₄	central stem extension (φ=1)	72	2	C2.3(C2^2xC18)	144,50

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Extensions 1→N→G→Q→1 with N=C2 and Q=C22×C18