Extensions 1→N→G→Q→1 with N=C₂₁ and Q=Q₁₆

Direct product G=N×Q with N=C₂₁ and Q=Q₁₆

		d	ρ	Label	ID
Q₁₆×C₂₁		336	2	Q16xC21	336,113

Semidirect products G=N:Q with N=C₂₁ and Q=Q₁₆

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂₁⋊₁Q₁₆ = C₂₁⋊Q₁₆	φ: Q₁₆/C₄ → C₂² ⊆ Aut C₂₁	336	4	C21:1Q16	336,38
C₂₁⋊₂Q₁₆ = C₃⋊Dic₂₈	φ: Q₁₆/C₄ → C₂² ⊆ Aut C₂₁	336	4-	C21:2Q16	336,39
C₂₁⋊₃Q₁₆ = C₇⋊Dic₁₂	φ: Q₁₆/C₄ → C₂² ⊆ Aut C₂₁	336	4-	C21:3Q16	336,40
C₂₁⋊₄Q₁₆ = Dic₈₄	φ: Q₁₆/C₈ → C₂ ⊆ Aut C₂₁	336	2-	C21:4Q16	336,94
C₂₁⋊₅Q₁₆ = C₃×Dic₂₈	φ: Q₁₆/C₈ → C₂ ⊆ Aut C₂₁	336	2	C21:5Q16	336,62
C₂₁⋊₆Q₁₆ = C₇×Dic₁₂	φ: Q₁₆/C₈ → C₂ ⊆ Aut C₂₁	336	2	C21:6Q16	336,78
C₂₁⋊₇Q₁₆ = C₂₁⋊₇Q₁₆	φ: Q₁₆/Q₈ → C₂ ⊆ Aut C₂₁	336	4-	C21:7Q16	336,104
C₂₁⋊₈Q₁₆ = C₃×C₇⋊Q₁₆	φ: Q₁₆/Q₈ → C₂ ⊆ Aut C₂₁	336	4	C21:8Q16	336,72
C₂₁⋊₉Q₁₆ = C₇×C₃⋊Q₁₆	φ: Q₁₆/Q₈ → C₂ ⊆ Aut C₂₁	336	4	C21:9Q16	336,88

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