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C
n
D
n
S
n
A
n
Degree
Linear
Irr Reps
Characters
x
:
.
o
wr
Extensions
1→N→G→Q→1 with N=
C
19
and Q=
D
9
Direct product G=NxQ with N=
C
19
and Q=
D
9
d
ρ
Label
ID
D
9
xC
19
171
2
D9xC19
342,3
Semidirect products G=N:Q with N=
C
19
and Q=
D
9
extension
φ:Q→Aut N
d
ρ
Label
ID
C
19
:D
9
=
D
171
φ:
D
9
/
C
9
→
C
2
⊆ Aut
C
19
171
2+
C19:D9
342,5
x
:
Z
F
o
wr
Q
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