Extensions 1→N→G→Q→1 with N=C22×D9 and Q=C2

Direct product G=N×Q with N=C22×D9 and Q=C2
dρLabelID
C23×D972C2^3xD9144,112

Semidirect products G=N:Q with N=C22×D9 and Q=C2
extensionφ:Q→Out NdρLabelID
(C22×D9)⋊1C2 = C2×D36φ: C2/C1C2 ⊆ Out C22×D972(C2^2xD9):1C2144,39
(C22×D9)⋊2C2 = D4×D9φ: C2/C1C2 ⊆ Out C22×D9364+(C2^2xD9):2C2144,41
(C22×D9)⋊3C2 = C2×C9⋊D4φ: C2/C1C2 ⊆ Out C22×D972(C2^2xD9):3C2144,46

Non-split extensions G=N.Q with N=C22×D9 and Q=C2
extensionφ:Q→Out NdρLabelID
(C22×D9).C2 = D18⋊C4φ: C2/C1C2 ⊆ Out C22×D972(C2^2xD9).C2144,14
(C22×D9).2C2 = C2×C4×D9φ: trivial image72(C2^2xD9).2C2144,38

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