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

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

		d	ρ	Label	ID
C₂²×D₉		36		C2^2xD9	72,17

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

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁D₁₈ = C₄×D₉	central extension (φ=1)	36	2	C2.1D18	72,5
C₂.₂D₁₈ = C₂×Dic₉	central extension (φ=1)	72		C2.2D18	72,7
C₂.₃D₁₈ = Dic₁₈	central stem extension (φ=1)	72	2-	C2.3D18	72,4
C₂.₄D₁₈ = D₃₆	central stem extension (φ=1)	36	2+	C2.4D18	72,6
C₂.₅D₁₈ = C₉⋊D₄	central stem extension (φ=1)	36	2	C2.5D18	72,8

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