Extensions 1→N→G→Q→1 with N=D20 and Q=C6

Direct product G=NxQ with N=D20 and Q=C6
dρLabelID
C6xD20120C6xD20240,157

Semidirect products G=N:Q with N=D20 and Q=C6
extensionφ:Q→Out NdρLabelID
D20:1C6 = C3xD40φ: C6/C3C2 ⊆ Out D201202D20:1C6240,36
D20:2C6 = C3xD4:D5φ: C6/C3C2 ⊆ Out D201204D20:2C6240,44
D20:3C6 = C3xD4xD5φ: C6/C3C2 ⊆ Out D20604D20:3C6240,159
D20:4C6 = C3xQ8:2D5φ: C6/C3C2 ⊆ Out D201204D20:4C6240,162
D20:5C6 = C3xC4oD20φ: trivial image1202D20:5C6240,158

Non-split extensions G=N.Q with N=D20 and Q=C6
extensionφ:Q→Out NdρLabelID
D20.1C6 = C3xC40:C2φ: C6/C3C2 ⊆ Out D201202D20.1C6240,35
D20.2C6 = C3xQ8:D5φ: C6/C3C2 ⊆ Out D201204D20.2C6240,46

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