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Extensions 1→N→G→Q→1 with N=C2 and Q=C4.C42

Direct product G=NxQ with N=C2 and Q=C4.C42
dρLabelID
C2xC4.C4264C2xC4.C4^2128,469


Non-split extensions G=N.Q with N=C2 and Q=C4.C42
extensionφ:Q→Aut NdρLabelID
C2.1(C4.C42) = C42.385D4central extension (φ=1)128C2.1(C4.C4^2)128,9
C2.2(C4.C42) = M4(2):C8central extension (φ=1)64C2.2(C4.C4^2)128,10
C2.3(C4.C42) = C42.23D4central stem extension (φ=1)64C2.3(C4.C4^2)128,19
C2.4(C4.C42) = C42.25D4central stem extension (φ=1)64C2.4(C4.C4^2)128,22
C2.5(C4.C42) = C24.2Q8central stem extension (φ=1)32C2.5(C4.C4^2)128,25
C2.6(C4.C42) = C24.3Q8central stem extension (φ=1)32C2.6(C4.C4^2)128,30
C2.7(C4.C42) = C42.388D4central stem extension (φ=1)64C2.7(C4.C4^2)128,31
C2.8(C4.C42) = C42.389D4central stem extension (φ=1)64C2.8(C4.C4^2)128,33
C2.9(C4.C42) = C42.370D4central stem extension (φ=1)64C2.9(C4.C4^2)128,34

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