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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
2
⋊
9
C
3
and Q=
C
2
Direct product G=N×Q with N=
C
9
2
⋊
9
C
3
and Q=
C
2
d
ρ
Label
ID
C
2
×C
9
2
⋊
9
C
3
162
C2xC9^2:9C3
486,206
Semidirect products G=N:Q with N=
C
9
2
⋊
9
C
3
and Q=
C
2
extension
φ:Q→Out N
d
ρ
Label
ID
C
9
2
⋊
9
C
3
⋊
1
C
2
=
C
9
2
⋊
8
C
6
φ:
C
2
/
C
1
→
C
2
⊆ Out
C
9
2
⋊
9
C
3
18
6
C9^2:9C3:1C2
486,110
C
9
2
⋊
9
C
3
⋊
2
C
2
=
C
9
2
⋊
12
C
6
φ:
C
2
/
C
1
→
C
2
⊆ Out
C
9
2
⋊
9
C
3
81
C9^2:9C3:2C2
486,159
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