Extensions 1→N→G→Q→1 with N=C4○D4 and Q=D9

Direct product G=N×Q with N=C4○D4 and Q=D9
dρLabelID
C4○D4×D9724C4oD4xD9288,362

Semidirect products G=N:Q with N=C4○D4 and Q=D9
extensionφ:Q→Out NdρLabelID
C4○D41D9 = C12.11S4φ: D9/C3S3 ⊆ Out C4○D41444C4oD4:1D9288,339
C4○D42D9 = C12.4S4φ: D9/C3S3 ⊆ Out C4○D4724+C4oD4:2D9288,340
C4○D43D9 = D4⋊D18φ: D9/C9C2 ⊆ Out C4○D4724+C4oD4:3D9288,160
C4○D44D9 = D4.9D18φ: D9/C9C2 ⊆ Out C4○D41444C4oD4:4D9288,161
C4○D45D9 = D48D18φ: D9/C9C2 ⊆ Out C4○D4724+C4oD4:5D9288,363
C4○D46D9 = D4.10D18φ: D9/C9C2 ⊆ Out C4○D41444-C4oD4:6D9288,364

Non-split extensions G=N.Q with N=C4○D4 and Q=D9
extensionφ:Q→Out NdρLabelID
C4○D4.1D9 = C12.9S4φ: D9/C3S3 ⊆ Out C4○D4724C4oD4.1D9288,70
C4○D4.2D9 = C12.3S4φ: D9/C3S3 ⊆ Out C4○D41444-C4oD4.2D9288,338
C4○D4.3D9 = Q83Dic9φ: D9/C9C2 ⊆ Out C4○D4724C4oD4.3D9288,44
C4○D4.4D9 = D4.D18φ: D9/C9C2 ⊆ Out C4○D41444-C4oD4.4D9288,159
C4○D4.5D9 = D4.Dic9φ: trivial image1444C4oD4.5D9288,158

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