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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
13
and Q=
D
15
Direct product G=N×Q with N=
C
13
and Q=
D
15
d
ρ
Label
ID
C
13
×D
15
195
2
C13xD15
390,10
Semidirect products G=N:Q with N=
C
13
and Q=
D
15
extension
φ:Q→Aut N
d
ρ
Label
ID
C
13
⋊D
15
=
D
195
φ:
D
15
/
C
15
→
C
2
⊆ Aut
C
13
195
2+
C13:D15
390,11
×
⋊
ℤ
𝔽
○
≀
ℚ
◁