Extensions 1→N→G→Q→1 with N=C21 and Q=D4

Direct product G=N×Q with N=C21 and Q=D4
dρLabelID
D4×C21842D4xC21168,40

Semidirect products G=N:Q with N=C21 and Q=D4
extensionφ:Q→Aut NdρLabelID
C211D4 = C21⋊D4φ: D4/C2C22 ⊆ Aut C21844-C21:1D4168,15
C212D4 = C3⋊D28φ: D4/C2C22 ⊆ Aut C21844+C21:2D4168,16
C213D4 = C7⋊D12φ: D4/C2C22 ⊆ Aut C21844+C21:3D4168,17
C214D4 = D84φ: D4/C4C2 ⊆ Aut C21842+C21:4D4168,36
C215D4 = C3×D28φ: D4/C4C2 ⊆ Aut C21842C21:5D4168,26
C216D4 = C7×D12φ: D4/C4C2 ⊆ Aut C21842C21:6D4168,31
C217D4 = C217D4φ: D4/C22C2 ⊆ Aut C21842C21:7D4168,38
C218D4 = C3×C7⋊D4φ: D4/C22C2 ⊆ Aut C21842C21:8D4168,28
C219D4 = C7×C3⋊D4φ: D4/C22C2 ⊆ Aut C21842C21:9D4168,33


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