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Extensions 1→N→G→Q→1 with N=C2 and Q=C4.9C42

Direct product G=N×Q with N=C2 and Q=C4.9C42
dρLabelID
C2×C4.9C4232C2xC4.9C4^2128,462


Non-split extensions G=N.Q with N=C2 and Q=C4.9C42
extensionφ:Q→Aut NdρLabelID
C2.1(C4.9C42) = C42⋊1C8central extension (φ=1)32C2.1(C4.9C4^2)128,6
C2.2(C4.9C42) = C42.20D4central extension (φ=1)64C2.2(C4.9C4^2)128,7
C2.3(C4.9C42) = C24.46D4central stem extension (φ=1)32C2.3(C4.9C4^2)128,16
C2.4(C4.9C42) = C42.4Q8central stem extension (φ=1)32C2.4(C4.9C4^2)128,17
C2.5(C4.9C42) = C42.5Q8central stem extension (φ=1)32C2.5(C4.9C4^2)128,18
C2.6(C4.9C42) = C42.23D4central stem extension (φ=1)64C2.6(C4.9C4^2)128,19
C2.7(C4.9C42) = C42.6Q8central stem extension (φ=1)32C2.7(C4.9C4^2)128,20
C2.8(C4.9C42) = C23.8D8central stem extension (φ=1)32C2.8(C4.9C4^2)128,21
C2.9(C4.9C42) = C42.25D4central stem extension (φ=1)64C2.9(C4.9C4^2)128,22

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