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C
n
D
n
S
n
A
n
Degree
Linear
Irr Reps
Characters
×
⋊
.
○
≀
Extensions
1→N→G→Q→1 with N=
C
2
2
×A
4
and Q=
C
9
Direct product G=N×Q with N=
C
2
2
×A
4
and Q=
C
9
d
ρ
Label
ID
A
4
×C
2
×C
18
108
A4xC2xC18
432,546
Semidirect products G=N:Q with N=
C
2
2
×A
4
and Q=
C
9
extension
φ:Q→Out N
d
ρ
Label
ID
(C
2
2
×A
4
)⋊C
9
=
A
4
×C
3
.A
4
φ:
C
9
/
C
3
→
C
3
⊆ Out
C
2
2
×A
4
54
9
(C2^2xA4):C9
432,524
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