Extensions 1→N→G→Q→1 with N=C₂ and Q=D₅₄

Direct product G=NxQ with N=C₂ and Q=D₅₄

		d	ρ	Label	ID
C₂²xD₂₇		108		C2^2xD27	216,23

Non-split extensions G=N.Q with N=C₂ and Q=D₅₄

extension	φ:Q→Aut N	d	ρ	Label	ID
C₂.₁D₅₄ = C₄xD₂₇	central extension (φ=1)	108	2	C2.1D54	216,5
C₂.₂D₅₄ = C₂xDic₂₇	central extension (φ=1)	216		C2.2D54	216,7
C₂.₃D₅₄ = Dic₅₄	central stem extension (φ=1)	216	2-	C2.3D54	216,4
C₂.₄D₅₄ = D₁₀₈	central stem extension (φ=1)	108	2+	C2.4D54	216,6
C₂.₅D₅₄ = C₂₇:D₄	central stem extension (φ=1)	108	2	C2.5D54	216,8

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