Extensions 1→N→G→Q→1 with N=C₂×C₆ and Q=C₂₁

Direct product G=N×Q with N=C₂×C₆ and Q=C₂₁

		d	ρ	Label	ID
C₆×C₄₂		252		C6xC42	252,46

Semidirect products G=N:Q with N=C₂×C₆ and Q=C₂₁

extension	φ:Q→Aut N	d	ρ	Label	ID
(C₂×C₆)⋊C₂₁ = A₄×C₂₁	φ: C₂₁/C₇ → C₃ ⊆ Aut C₂×C₆	84	3	(C2xC6):C21	252,39

Non-split extensions G=N.Q with N=C₂×C₆ and Q=C₂₁

extension	φ:Q→Aut N	d	ρ	Label	ID
(C₂×C₆).C₂₁ = C₇×C₃.A₄	φ: C₂₁/C₇ → C₃ ⊆ Aut C₂×C₆	126	3	(C2xC6).C21	252,10

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Extensions 1→N→G→Q→1 with N=C2×C6 and Q=C21