Extensions 1→N→G→Q→1 with N=D18 and Q=Q8

Direct product G=N×Q with N=D18 and Q=Q8
dρLabelID
C2×Q8×D9144C2xQ8xD9288,359

Semidirect products G=N:Q with N=D18 and Q=Q8
extensionφ:Q→Out NdρLabelID
D181Q8 = D18⋊Q8φ: Q8/C4C2 ⊆ Out D18144D18:1Q8288,106
D182Q8 = D182Q8φ: Q8/C4C2 ⊆ Out D18144D18:2Q8288,107
D183Q8 = D183Q8φ: Q8/C4C2 ⊆ Out D18144D18:3Q8288,156

Non-split extensions G=N.Q with N=D18 and Q=Q8
extensionφ:Q→Out NdρLabelID
D18.Q8 = C4⋊C4×D9φ: trivial image144D18.Q8288,101

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