Extensions 1→N→G→Q→1 with N=C22xD9 and Q=C4

Direct product G=NxQ with N=C22xD9 and Q=C4
dρLabelID
C22xC4xD9144C2^2xC4xD9288,353

Semidirect products G=N:Q with N=C22xD9 and Q=C4
extensionφ:Q→Out NdρLabelID
(C22xD9):C4 = C22.D36φ: C4/C1C4 ⊆ Out C22xD9724(C2^2xD9):C4288,13
(C22xD9):2C4 = C22:C4xD9φ: C4/C2C2 ⊆ Out C22xD972(C2^2xD9):2C4288,90
(C22xD9):3C4 = C2xD18:C4φ: C4/C2C2 ⊆ Out C22xD9144(C2^2xD9):3C4288,137

Non-split extensions G=N.Q with N=C22xD9 and Q=C4
extensionφ:Q→Out NdρLabelID
(C22xD9).C4 = C36.48D4φ: C4/C1C4 ⊆ Out C22xD9724+(C2^2xD9).C4288,31
(C22xD9).2C4 = D18:C8φ: C4/C2C2 ⊆ Out C22xD9144(C2^2xD9).2C4288,27
(C22xD9).3C4 = C2xC8:D9φ: C4/C2C2 ⊆ Out C22xD9144(C2^2xD9).3C4288,111
(C22xD9).4C4 = M4(2)xD9φ: C4/C2C2 ⊆ Out C22xD9724(C2^2xD9).4C4288,116
(C22xD9).5C4 = C2xC8xD9φ: trivial image144(C2^2xD9).5C4288,110

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