Extensions 1→N→G→Q→1 with N=C₂ and Q=C₄xD₃₁

Direct product G=NxQ with N=C₂ and Q=C₄xD₃₁

		d	ρ	Label	ID
C₂xC₄xD₃₁		248		C2xC4xD31	496,28

Non-split extensions G=N.Q with N=C₂ and Q=C₄xD₃₁

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁(C₄xD₃₁) = C₈xD₃₁	central extension (φ=1)	248	2	C2.1(C4xD31)	496,3
C₂.₂(C₄xD₃₁) = C₄xDic₃₁	central extension (φ=1)	496		C2.2(C4xD31)	496,10
C₂.₃(C₄xD₃₁) = C₈:D₃₁	central stem extension (φ=1)	248	2	C2.3(C4xD31)	496,4
C₂.₄(C₄xD₃₁) = Dic₃₁:C₄	central stem extension (φ=1)	496		C2.4(C4xD31)	496,11
C₂.₅(C₄xD₃₁) = D₆₂:C₄	central stem extension (φ=1)	248		C2.5(C4xD31)	496,13

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