Extensions 1→N→G→Q→1 with N=C₂₀ and Q=C₁₆

Direct product G=NxQ with N=C₂₀ and Q=C₁₆

		d	ρ	Label	ID
C₄xC₈₀		320		C4xC80	320,150

Semidirect products G=N:Q with N=C₂₀ and Q=C₁₆

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂₀:₁C₁₆ = C₂₀:C₁₆	φ: C₁₆/C₄ → C₄ ⊆ Aut C₂₀	320		C20:1C16	320,196
C₂₀:₂C₁₆ = C₄xC₅:C₁₆	φ: C₁₆/C₄ → C₄ ⊆ Aut C₂₀	320		C20:2C16	320,195
C₂₀:₃C₁₆ = C₂₀:₃C₁₆	φ: C₁₆/C₈ → C₂ ⊆ Aut C₂₀	320		C20:3C16	320,20
C₂₀:₄C₁₆ = C₄xC₅:₂C₁₆	φ: C₁₆/C₈ → C₂ ⊆ Aut C₂₀	320		C20:4C16	320,18
C₂₀:₅C₁₆ = C₅xC₄:C₁₆	φ: C₁₆/C₈ → C₂ ⊆ Aut C₂₀	320		C20:5C16	320,168

Non-split extensions G=N.Q with N=C₂₀ and Q=C₁₆

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂₀.₁C₁₆ = C₅:M₆(2)	φ: C₁₆/C₄ → C₄ ⊆ Aut C₂₀	160	4	C20.1C16	320,215
C₂₀.₂C₁₆ = C₅:C₆₄	φ: C₁₆/C₄ → C₄ ⊆ Aut C₂₀	320	4	C20.2C16	320,3
C₂₀.₃C₁₆ = C₂xC₅:C₃₂	φ: C₁₆/C₄ → C₄ ⊆ Aut C₂₀	320		C20.3C16	320,214
C₂₀.₄C₁₆ = C₈₀.₉C₄	φ: C₁₆/C₈ → C₂ ⊆ Aut C₂₀	160	2	C20.4C16	320,57
C₂₀.₅C₁₆ = C₅:₂C₆₄	φ: C₁₆/C₈ → C₂ ⊆ Aut C₂₀	320	2	C20.5C16	320,1
C₂₀.₆C₁₆ = C₂xC₅:₂C₃₂	φ: C₁₆/C₈ → C₂ ⊆ Aut C₂₀	320		C20.6C16	320,56
C₂₀.₇C₁₆ = C₅xM₆(2)	φ: C₁₆/C₈ → C₂ ⊆ Aut C₂₀	160	2	C20.7C16	320,175

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