Extensions 1→N→G→Q→1 with N=Dic20 and Q=C2

Direct product G=N×Q with N=Dic20 and Q=C2

Semidirect products G=N:Q with N=Dic20 and Q=C2
extensionφ:Q→Out NdρLabelID
Dic201C2 = C16⋊D5φ: C2/C1C2 ⊆ Out Dic20802Dic20:1C2160,7
Dic202C2 = C8.D10φ: C2/C1C2 ⊆ Out Dic20804-Dic20:2C2160,130
Dic203C2 = D8.D5φ: C2/C1C2 ⊆ Out Dic20804-Dic20:3C2160,34
Dic204C2 = D83D5φ: C2/C1C2 ⊆ Out Dic20804-Dic20:4C2160,133
Dic205C2 = D5×Q16φ: C2/C1C2 ⊆ Out Dic20804-Dic20:5C2160,138
Dic206C2 = SD16⋊D5φ: C2/C1C2 ⊆ Out Dic20804-Dic20:6C2160,136
Dic207C2 = D407C2φ: trivial image802Dic20:7C2160,125

Non-split extensions G=N.Q with N=Dic20 and Q=C2
extensionφ:Q→Out NdρLabelID
Dic20.1C2 = Dic40φ: C2/C1C2 ⊆ Out Dic201602-Dic20.1C2160,8
Dic20.2C2 = C5⋊Q32φ: C2/C1C2 ⊆ Out Dic201604-Dic20.2C2160,36