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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
27
and Q=
C
3
Direct product G=N×Q with N=
D
27
and Q=
C
3
d
ρ
Label
ID
C
3
×D
27
54
2
C3xD27
162,7
Semidirect products G=N:Q with N=
D
27
and Q=
C
3
extension
φ:Q→Out N
d
ρ
Label
ID
D
27
⋊C
3
=
C
27
⋊C
6
φ:
C
3
/
C
1
→
C
3
⊆ Out
D
27
27
6+
D27:C3
162,9
×
⋊
ℤ
𝔽
○
≀
ℚ
◁