Extensions 1→N→G→Q→1 with N=Dic19 and Q=C4

Direct product G=NxQ with N=Dic19 and Q=C4
dρLabelID
C4xDic19304C4xDic19304,10

Semidirect products G=N:Q with N=Dic19 and Q=C4
extensionφ:Q→Out NdρLabelID
Dic19:C4 = Dic19:C4φ: C4/C2C2 ⊆ Out Dic19304Dic19:C4304,11

Non-split extensions G=N.Q with N=Dic19 and Q=C4
extensionφ:Q→Out NdρLabelID
Dic19.C4 = C8:D19φ: C4/C2C2 ⊆ Out Dic191522Dic19.C4304,4
Dic19.2C4 = C8xD19φ: trivial image1522Dic19.2C4304,3

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