Extensions 1→N→G→Q→1 with N=C₃×C₂₁ and Q=C₂

Direct product G=N×Q with N=C₃×C₂₁ and Q=C₂

		d	ρ	Label	ID
C₃×C₄₂		126		C3xC42	126,16

Semidirect products G=N:Q with N=C₃×C₂₁ and Q=C₂

extension	φ:Q→Aut N	d	ρ	Label	ID
(C₃×C₂₁)⋊₁C₂ = C₃⋊D₂₁	φ: C₂/C₁ → C₂ ⊆ Aut C₃×C₂₁	63		(C3xC21):1C2	126,15
(C₃×C₂₁)⋊₂C₂ = C₃×D₂₁	φ: C₂/C₁ → C₂ ⊆ Aut C₃×C₂₁	42	2	(C3xC21):2C2	126,13
(C₃×C₂₁)⋊₃C₂ = C₃²×D₇	φ: C₂/C₁ → C₂ ⊆ Aut C₃×C₂₁	63		(C3xC21):3C2	126,11
(C₃×C₂₁)⋊₄C₂ = S₃×C₂₁	φ: C₂/C₁ → C₂ ⊆ Aut C₃×C₂₁	42	2	(C3xC21):4C2	126,12
(C₃×C₂₁)⋊₅C₂ = C₇×C₃⋊S₃	φ: C₂/C₁ → C₂ ⊆ Aut C₃×C₂₁	63		(C3xC21):5C2	126,14

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