Extensions 1→N→G→Q→1 with N=C₄ and Q=C₁₈

Direct product G=N×Q with N=C₄ and Q=C₁₈

		d	ρ	Label	ID
C₂×C₃₆		72		C2xC36	72,9

Semidirect products G=N:Q with N=C₄ and Q=C₁₈

extension	φ:Q→Aut N	d	ρ	Label	ID
C₄⋊C₁₈ = D₄×C₉	φ: C₁₈/C₉ → C₂ ⊆ Aut C₄	36	2	C4:C18	72,10

Non-split extensions G=N.Q with N=C₄ and Q=C₁₈

extension	φ:Q→Aut N	d	ρ	Label	ID
C₄.C₁₈ = Q₈×C₉	φ: C₁₈/C₉ → C₂ ⊆ Aut C₄	72	2	C4.C18	72,11

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Extensions 1→N→G→Q→1 with N=C4 and Q=C18