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Extensions 1→N→G→Q→1 with N=C2 and Q=D8:C4

Direct product G=NxQ with N=C2 and Q=D8:C4
dρLabelID
C2xD8:C464C2xD8:C4128,1674


Non-split extensions G=N.Q with N=C2 and Q=D8:C4
extensionφ:Q→Aut NdρLabelID
C2.1(D8:C4) = D8:5C8central extension (φ=1)64C2.1(D8:C4)128,312
C2.2(D8:C4) = D4:C42central extension (φ=1)64C2.2(D8:C4)128,494
C2.3(D8:C4) = C8:C42central extension (φ=1)128C2.3(D8:C4)128,508
C2.4(D8:C4) = D4:2M4(2)central stem extension (φ=1)64C2.4(D8:C4)128,318
C2.5(D8:C4) = C8:3M4(2)central stem extension (φ=1)64C2.5(D8:C4)128,326
C2.6(D8:C4) = D4:(C4:C4)central stem extension (φ=1)64C2.6(D8:C4)128,596
C2.7(D8:C4) = (C2xC4):9D8central stem extension (φ=1)64C2.7(D8:C4)128,611
C2.8(D8:C4) = C2.D8:5C4central stem extension (φ=1)128C2.8(D8:C4)128,653
C2.9(D8:C4) = C4.67(C4xD4)central stem extension (φ=1)64C2.9(D8:C4)128,658
C2.10(D8:C4) = C2.(C8:2D4)central stem extension (φ=1)64C2.10(D8:C4)128,668
C2.11(D8:C4) = C4.(C4xQ8)central stem extension (φ=1)128C2.11(D8:C4)128,675
C2.12(D8:C4) = (C2xD8):10C4central stem extension (φ=1)64C2.12(D8:C4)128,704
C2.13(D8:C4) = Q32:C4central stem extension (φ=1)328-C2.13(D8:C4)128,912
C2.14(D8:C4) = D16:C4central stem extension (φ=1)168+C2.14(D8:C4)128,913

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