Extensions 1→N→G→Q→1 with N=C₂₁ and Q=C₂³

Direct product G=N×Q with N=C₂₁ and Q=C₂³

		d	ρ	Label	ID
C₂²×C₄₂		168		C2^2xC42	168,57

Semidirect products G=N:Q with N=C₂₁ and Q=C₂³

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂₁⋊C₂³ = C₂×S₃×D₇	φ: C₂³/C₂ → C₂² ⊆ Aut C₂₁	42	4+	C21:C2^3	168,50
C₂₁⋊₂C₂³ = C₂²×D₂₁	φ: C₂³/C₂² → C₂ ⊆ Aut C₂₁	84		C21:2C2^3	168,56
C₂₁⋊₃C₂³ = C₂×C₆×D₇	φ: C₂³/C₂² → C₂ ⊆ Aut C₂₁	84		C21:3C2^3	168,54
C₂₁⋊₄C₂³ = S₃×C₂×C₁₄	φ: C₂³/C₂² → C₂ ⊆ Aut C₂₁	84		C21:4C2^3	168,55

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