Extensions 1→N→G→Q→1 with N=D8 and Q=D9

Direct product G=N×Q with N=D8 and Q=D9
dρLabelID
D8×D9724+D8xD9288,120

Semidirect products G=N:Q with N=D8 and Q=D9
extensionφ:Q→Out NdρLabelID
D81D9 = C9⋊D16φ: D9/C9C2 ⊆ Out D81444+D8:1D9288,33
D82D9 = D8⋊D9φ: D9/C9C2 ⊆ Out D8724D8:2D9288,121
D83D9 = D83D9φ: trivial image1444-D8:3D9288,122

Non-split extensions G=N.Q with N=D8 and Q=D9
extensionφ:Q→Out NdρLabelID
D8.D9 = D8.D9φ: D9/C9C2 ⊆ Out D81444-D8.D9288,34

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