Extensions 1→N→G→Q→1 with N=C₁₂₉ and Q=C₂

Direct product G=N×Q with N=C₁₂₉ and Q=C₂

		d	ρ	Label	ID
C₂₅₈		258	1	C258	258,6

Semidirect products G=N:Q with N=C₁₂₉ and Q=C₂

extension	φ:Q→Aut N	d	ρ	Label	ID
C₁₂₉⋊₁C₂ = D₁₂₉	φ: C₂/C₁ → C₂ ⊆ Aut C₁₂₉	129	2+	C129:1C2	258,5
C₁₂₉⋊₂C₂ = C₃×D₄₃	φ: C₂/C₁ → C₂ ⊆ Aut C₁₂₉	129	2	C129:2C2	258,4
C₁₂₉⋊₃C₂ = S₃×C₄₃	φ: C₂/C₁ → C₂ ⊆ Aut C₁₂₉	129	2	C129:3C2	258,3

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