Extensions 1→N→G→Q→1 with N=C₇ and Q=D₂₁

Direct product G=N×Q with N=C₇ and Q=D₂₁

		d	ρ	Label	ID
C₇×D₂₁		42	2	C7xD21	294,21

Semidirect products G=N:Q with N=C₇ and Q=D₂₁

extension	φ:Q→Aut N	d	ρ	Label	ID
C₇⋊D₂₁ = C₇⋊D₂₁	φ: D₂₁/C₂₁ → C₂ ⊆ Aut C₇	147		C7:D21	294,22

Non-split extensions G=N.Q with N=C₇ and Q=D₂₁

extension	φ:Q→Aut N	d	ρ	Label	ID
C₇.D₂₁ = D₁₄₇	φ: D₂₁/C₂₁ → C₂ ⊆ Aut C₇	147	2+	C7.D21	294,5

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Extensions 1→N→G→Q→1 with N=C7 and Q=D21