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C
n
D
n
S
n
A
n
Degree
Linear
Irr Reps
Characters
x
:
.
o
wr
Extensions
1→N→G→Q→1 with N=
D
4
xC
18
and Q=
C
3
Direct product G=NxQ with N=
D
4
xC
18
and Q=
C
3
d
ρ
Label
ID
D
4
xC
3
xC
18
216
D4xC3xC18
432,403
Semidirect products G=N:Q with N=
D
4
xC
18
and Q=
C
3
extension
φ:Q→Out N
d
ρ
Label
ID
(D
4
xC
18
):C
3
=
C
2
xD
4
x3
-
1+2
φ:
C
3
/
C
1
→
C
3
⊆ Out
D
4
xC
18
72
(D4xC18):C3
432,405
Non-split extensions G=N.Q with N=
D
4
xC
18
and Q=
C
3
extension
φ:Q→Out N
d
ρ
Label
ID
(D
4
xC
18
).C
3
=
D
4
xC
54
φ: trivial image
216
(D4xC18).C3
432,54
x
:
Z
F
o
wr
Q
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