Extensions 1→N→G→Q→1 with N=C₂²×C₄ and Q=C₂₁

Direct product G=N×Q with N=C₂²×C₄ and Q=C₂₁

		d	ρ	Label	ID
C₂²×C₈₄		336		C2^2xC84	336,204

Semidirect products G=N:Q with N=C₂²×C₄ and Q=C₂₁

extension	φ:Q→Aut N	d	ρ	Label	ID
(C₂²×C₄)⋊C₂₁ = A₄×C₂₈	φ: C₂₁/C₇ → C₃ ⊆ Aut C₂²×C₄	84	3	(C2^2xC4):C21	336,168

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