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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=
S
3
×C
9
and Q=
C
4
Direct product G=N×Q with N=
S
3
×C
9
and Q=
C
4
d
ρ
Label
ID
S
3
×C
36
72
2
S3xC36
216,47
Semidirect products G=N:Q with N=
S
3
×C
9
and Q=
C
4
extension
φ:Q→Out N
d
ρ
Label
ID
(S
3
×C
9
)⋊C
4
=
S
3
×Dic
9
φ:
C
4
/
C
2
→
C
2
⊆ Out
S
3
×C
9
72
4-
(S3xC9):C4
216,30
×
⋊
ℤ
𝔽
○
≀
ℚ
◁