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Extensions 1→N→G→Q→1 with N=C2 and Q=C2xDic27

Direct product G=NxQ with N=C2 and Q=C2xDic27
dρLabelID
C22xDic27432C2^2xDic27432,51


Non-split extensions G=N.Q with N=C2 and Q=C2xDic27
extensionφ:Q→Aut NdρLabelID
C2.1(C2xDic27) = C2xC27:C8central extension (φ=1)432C2.1(C2xDic27)432,9
C2.2(C2xDic27) = C4xDic27central extension (φ=1)432C2.2(C2xDic27)432,11
C2.3(C2xDic27) = C4.Dic27central stem extension (φ=1)2162C2.3(C2xDic27)432,10
C2.4(C2xDic27) = C4:Dic27central stem extension (φ=1)432C2.4(C2xDic27)432,13
C2.5(C2xDic27) = C54.D4central stem extension (φ=1)216C2.5(C2xDic27)432,19

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