Extensions 1→N→G→Q→1 with N=C78 and Q=C2

Direct product G=NxQ with N=C78 and Q=C2
dρLabelID
C2xC78156C2xC78156,18

Semidirect products G=N:Q with N=C78 and Q=C2
extensionφ:Q→Aut NdρLabelID
C78:1C2 = D78φ: C2/C1C2 ⊆ Aut C78782+C78:1C2156,17
C78:2C2 = C6xD13φ: C2/C1C2 ⊆ Aut C78782C78:2C2156,15
C78:3C2 = S3xC26φ: C2/C1C2 ⊆ Aut C78782C78:3C2156,16

Non-split extensions G=N.Q with N=C78 and Q=C2
extensionφ:Q→Aut NdρLabelID
C78.1C2 = Dic39φ: C2/C1C2 ⊆ Aut C781562-C78.1C2156,5
C78.2C2 = C3xDic13φ: C2/C1C2 ⊆ Aut C781562C78.2C2156,4
C78.3C2 = Dic3xC13φ: C2/C1C2 ⊆ Aut C781562C78.3C2156,3

׿
x
:
Z
F
o
wr
Q
<