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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=
D
13
and Q=
D
9
Direct product G=N×Q with N=
D
13
and Q=
D
9
d
ρ
Label
ID
D
9
×D
13
117
4+
D9xD13
468,11
Non-split extensions G=N.Q with N=
D
13
and Q=
D
9
extension
φ:Q→Out N
d
ρ
Label
ID
D
13
.D
9
=
C
13
⋊Dic
9
φ:
D
9
/
C
9
→
C
2
⊆ Out
D
13
117
4
D13.D9
468,10
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⋊
ℤ
𝔽
○
≀
ℚ
◁