Extensions 1→N→G→Q→1 with N=D₁₈ and Q=Q₈

Direct product G=N×Q with N=D₁₈ and Q=Q₈

		d	ρ	Label	ID
C₂×Q₈×D₉		144		C2xQ8xD9	288,359

Semidirect products G=N:Q with N=D₁₈ and Q=Q₈

extension	φ:Q→Out N	d	Label	ID
D₁₈⋊₁Q₈ = D₁₈⋊Q₈	φ: Q₈/C₄ → C₂ ⊆ Out D₁₈	144	D18:1Q8	288,106
D₁₈⋊₂Q₈ = D₁₈⋊₂Q₈	φ: Q₈/C₄ → C₂ ⊆ Out D₁₈	144	D18:2Q8	288,107
D₁₈⋊₃Q₈ = D₁₈⋊₃Q₈	φ: Q₈/C₄ → C₂ ⊆ Out D₁₈	144	D18:3Q8	288,156

Non-split extensions G=N.Q with N=D₁₈ and Q=Q₈

extension	φ:Q→Out N	d	ρ	Label	ID
D₁₈.Q₈ = C₄⋊C₄×D₉	φ: trivial image	144		D18.Q8	288,101

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Extensions 1→N→G→Q→1 with N=D18 and Q=Q8