Extensions 1→N→G→Q→1 with N=C₁₈ and Q=D₇

Direct product G=N×Q with N=C₁₈ and Q=D₇

		d	ρ	Label	ID
D₇×C₁₈		126	2	D7xC18	252,12

Semidirect products G=N:Q with N=C₁₈ and Q=D₇

extension	φ:Q→Aut N	d	ρ	Label	ID
C₁₈⋊D₇ = D₁₂₆	φ: D₇/C₇ → C₂ ⊆ Aut C₁₈	126	2+	C18:D7	252,14

Non-split extensions G=N.Q with N=C₁₈ and Q=D₇

extension	φ:Q→Aut N	d	ρ	Label	ID
C₁₈.D₇ = Dic₆₃	φ: D₇/C₇ → C₂ ⊆ Aut C₁₈	252	2-	C18.D7	252,5
C₁₈.₂D₇ = C₉×Dic₇	central extension (φ=1)	252	2	C18.2D7	252,4

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Extensions 1→N→G→Q→1 with N=C18 and Q=D7