Extensions 1→N→G→Q→1 with N=C2 and Q=D18⋊C4

Direct product G=N×Q with N=C2 and Q=D18⋊C4

Non-split extensions G=N.Q with N=C2 and Q=D18⋊C4
extensionφ:Q→Aut NdρLabelID
C2.1(D18⋊C4) = D18⋊C8central extension (φ=1)144C2.1(D18:C4)288,27
C2.2(D18⋊C4) = C18.C42central extension (φ=1)288C2.2(D18:C4)288,38
C2.3(D18⋊C4) = C424D9central stem extension (φ=1)722C2.3(D18:C4)288,12
C2.4(D18⋊C4) = C22.D36central stem extension (φ=1)724C2.4(D18:C4)288,13
C2.5(D18⋊C4) = C18.Q16central stem extension (φ=1)288C2.5(D18:C4)288,16
C2.6(D18⋊C4) = C18.D8central stem extension (φ=1)144C2.6(D18:C4)288,17
C2.7(D18⋊C4) = C36.45D4central stem extension (φ=1)288C2.7(D18:C4)288,24
C2.8(D18⋊C4) = C2.D72central stem extension (φ=1)144C2.8(D18:C4)288,28
C2.9(D18⋊C4) = C4.D36central stem extension (φ=1)1444-C2.9(D18:C4)288,30
C2.10(D18⋊C4) = C36.48D4central stem extension (φ=1)724+C2.10(D18:C4)288,31
C2.11(D18⋊C4) = Dic18⋊C4central stem extension (φ=1)724C2.11(D18:C4)288,32