Extensions 1→N→G→Q→1 with N=C2 and Q=C4:D20

Direct product G=NxQ with N=C2 and Q=C4:D20
dρLabelID
C2xC4:D20160C2xC4:D20320,1178


Non-split extensions G=N.Q with N=C2 and Q=C4:D20
extensionφ:Q→Aut NdρLabelID
C2.1(C4:D20) = (C2xC4):9D20central extension (φ=1)160C2.1(C4:D20)320,292
C2.2(C4:D20) = C10.55(C4xD4)central extension (φ=1)160C2.2(C4:D20)320,297
C2.3(C4:D20) = C20:6(C4:C4)central extension (φ=1)320C2.3(C4:D20)320,612
C2.4(C4:D20) = D10:4(C4:C4)central extension (φ=1)160C2.4(C4:D20)320,614
C2.5(C4:D20) = (C2xD20):22C4central extension (φ=1)160C2.5(C4:D20)320,615
C2.6(C4:D20) = C10.(C4:Q8)central stem extension (φ=1)320C2.6(C4:D20)320,288
C2.7(C4:D20) = (C2xC20):5D4central stem extension (φ=1)160C2.7(C4:D20)320,298
C2.8(C4:D20) = (C2xDic5):3D4central stem extension (φ=1)160C2.8(C4:D20)320,299
C2.9(C4:D20) = (C2xC4).21D20central stem extension (φ=1)160C2.9(C4:D20)320,301
C2.10(C4:D20) = C20:SD16central stem extension (φ=1)160C2.10(C4:D20)320,468
C2.11(C4:D20) = C4:D40central stem extension (φ=1)160C2.11(C4:D20)320,470
C2.12(C4:D20) = D20.19D4central stem extension (φ=1)160C2.12(C4:D20)320,471
C2.13(C4:D20) = C42.36D10central stem extension (φ=1)160C2.13(C4:D20)320,472
C2.14(C4:D20) = Dic10:8D4central stem extension (φ=1)160C2.14(C4:D20)320,475
C2.15(C4:D20) = C4:Dic20central stem extension (φ=1)320C2.15(C4:D20)320,476
C2.16(C4:D20) = C8:8D20central stem extension (φ=1)160C2.16(C4:D20)320,491
C2.17(C4:D20) = C8:2D20central stem extension (φ=1)160C2.17(C4:D20)320,492
C2.18(C4:D20) = C8.2D20central stem extension (φ=1)160C2.18(C4:D20)320,495
C2.19(C4:D20) = C8:7D20central stem extension (φ=1)160C2.19(C4:D20)320,510
C2.20(C4:D20) = C8:3D20central stem extension (φ=1)160C2.20(C4:D20)320,513
C2.21(C4:D20) = D10:2Q16central stem extension (φ=1)160C2.21(C4:D20)320,514
C2.22(C4:D20) = C8.20D20central stem extension (φ=1)1604-C2.22(C4:D20)320,523
C2.23(C4:D20) = C8.21D20central stem extension (φ=1)804+C2.23(C4:D20)320,524
C2.24(C4:D20) = C8.24D20central stem extension (φ=1)804C2.24(C4:D20)320,525
C2.25(C4:D20) = (C2xC4):3D20central stem extension (φ=1)160C2.25(C4:D20)320,618
C2.26(C4:D20) = (C2xC20).56D4central stem extension (φ=1)160C2.26(C4:D20)320,621

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