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Extensions 1→N→G→Q→1 with N=C2 and Q=D4.2D4

Direct product G=N×Q with N=C2 and Q=D4.2D4
dρLabelID
C2×D4.2D464C2xD4.2D4128,1763


Non-split extensions G=N.Q with N=C2 and Q=D4.2D4
extensionφ:Q→Aut NdρLabelID
C2.1(D4.2D4) = C42.100D4central extension (φ=1)64C2.1(D4.2D4)128,536
C2.2(D4.2D4) = (C2×SD16)⋊14C4central extension (φ=1)64C2.2(D4.2D4)128,609
C2.3(D4.2D4) = (C2×C4)⋊9D8central extension (φ=1)64C2.3(D4.2D4)128,611
C2.4(D4.2D4) = C4.67(C4×D4)central extension (φ=1)64C2.4(D4.2D4)128,658
C2.5(D4.2D4) = C2.(C4×Q16)central extension (φ=1)128C2.5(D4.2D4)128,660
C2.6(D4.2D4) = C42.31Q8central extension (φ=1)128C2.6(D4.2D4)128,681
C2.7(D4.2D4) = C42.119D4central extension (φ=1)64C2.7(D4.2D4)128,715
C2.8(D4.2D4) = D4.2SD16central stem extension (φ=1)64C2.8(D4.2D4)128,409
C2.9(D4.2D4) = D4.3SD16central stem extension (φ=1)64C2.9(D4.2D4)128,411
C2.10(D4.2D4) = D4.2D8central stem extension (φ=1)64C2.10(D4.2D4)128,413
C2.11(D4.2D4) = D4.Q16central stem extension (φ=1)64C2.11(D4.2D4)128,415
C2.12(D4.2D4) = C42.248C23central stem extension (φ=1)64C2.12(D4.2D4)128,429
C2.13(D4.2D4) = C42.250C23central stem extension (φ=1)64C2.13(D4.2D4)128,431
C2.14(D4.2D4) = C42.252C23central stem extension (φ=1)64C2.14(D4.2D4)128,433
C2.15(D4.2D4) = C42.254C23central stem extension (φ=1)64C2.15(D4.2D4)128,435
C2.16(D4.2D4) = (C22×D8).C2central stem extension (φ=1)64C2.16(D4.2D4)128,744
C2.17(D4.2D4) = C4⋊C4.94D4central stem extension (φ=1)64C2.17(D4.2D4)128,774
C2.18(D4.2D4) = (C2×C4)⋊3D8central stem extension (φ=1)64C2.18(D4.2D4)128,786
C2.19(D4.2D4) = (C2×C4)⋊5SD16central stem extension (φ=1)64C2.19(D4.2D4)128,787
C2.20(D4.2D4) = C4⋊C4.106D4central stem extension (φ=1)64C2.20(D4.2D4)128,797
C2.21(D4.2D4) = (C2×C8).52D4central stem extension (φ=1)128C2.21(D4.2D4)128,800
C2.22(D4.2D4) = C42⋊8C4⋊C2central stem extension (φ=1)64C2.22(D4.2D4)128,805
C2.23(D4.2D4) = (C2×C8).24Q8central stem extension (φ=1)128C2.23(D4.2D4)128,817

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