Extensions 1→N→G→Q→1 with N=C₃×C₂₁ and Q=C₄

Direct product G=N×Q with N=C₃×C₂₁ and Q=C₄

		d	ρ	Label	ID
C₃×C₈₄		252		C3xC84	252,25

Semidirect products G=N:Q with N=C₃×C₂₁ and Q=C₄

extension	φ:Q→Aut N	d	ρ	Label	ID
(C₃×C₂₁)⋊₁C₄ = C₇×C₃²⋊C₄	φ: C₄/C₁ → C₄ ⊆ Aut C₃×C₂₁	42	4	(C3xC21):1C4	252,31
(C₃×C₂₁)⋊₂C₄ = C₃²⋊Dic₇	φ: C₄/C₁ → C₄ ⊆ Aut C₃×C₂₁	42	4	(C3xC21):2C4	252,32
(C₃×C₂₁)⋊₃C₄ = C₃⋊Dic₂₁	φ: C₄/C₂ → C₂ ⊆ Aut C₃×C₂₁	252		(C3xC21):3C4	252,24
(C₃×C₂₁)⋊₄C₄ = C₃×Dic₂₁	φ: C₄/C₂ → C₂ ⊆ Aut C₃×C₂₁	84	2	(C3xC21):4C4	252,22
(C₃×C₂₁)⋊₅C₄ = C₃²×Dic₇	φ: C₄/C₂ → C₂ ⊆ Aut C₃×C₂₁	252		(C3xC21):5C4	252,20
(C₃×C₂₁)⋊₆C₄ = Dic₃×C₂₁	φ: C₄/C₂ → C₂ ⊆ Aut C₃×C₂₁	84	2	(C3xC21):6C4	252,21
(C₃×C₂₁)⋊₇C₄ = C₇×C₃⋊Dic₃	φ: C₄/C₂ → C₂ ⊆ Aut C₃×C₂₁	252		(C3xC21):7C4	252,23

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