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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
9
and Q=
C
2
2
⋊C
8
Direct product G=N×Q with N=
C
9
and Q=
C
2
2
⋊C
8
d
ρ
Label
ID
C
9
×C
2
2
⋊C
8
144
C9xC2^2:C8
288,48
Semidirect products G=N:Q with N=
C
9
and Q=
C
2
2
⋊C
8
extension
φ:Q→Aut N
d
ρ
Label
ID
C
9
⋊
1
(C
2
2
⋊C
8
) =
D
18
⋊C
8
φ:
C
2
2
⋊C
8
/
C
2
×C
8
→
C
2
⊆ Aut
C
9
144
C9:1(C2^2:C8)
288,27
C
9
⋊
2
(C
2
2
⋊C
8
) =
C
36
.
55
D
4
φ:
C
2
2
⋊C
8
/
C
2
2
×C
4
→
C
2
⊆ Aut
C
9
144
C9:2(C2^2:C8)
288,37
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