Extensions 1→N→G→Q→1 with N=C3:D4 and Q=C20

Direct product G=NxQ with N=C3:D4 and Q=C20
dρLabelID
C20xC3:D4240C20xC3:D4480,807

Semidirect products G=N:Q with N=C3:D4 and Q=C20
extensionφ:Q→Out NdρLabelID
C3:D4:C20 = C5xDic3:4D4φ: C20/C10C2 ⊆ Out C3:D4240C3:D4:C20480,760

Non-split extensions G=N.Q with N=C3:D4 and Q=C20
extensionφ:Q→Out NdρLabelID
C3:D4.C20 = C5xD12.C4φ: C20/C10C2 ⊆ Out C3:D42404C3:D4.C20480,786
C3:D4.2C20 = C5xC8oD12φ: trivial image2402C3:D4.2C20480,780

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