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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
2
and Q=
C
2
xC
9
oHe
3
Direct product G=NxQ with N=
C
2
and Q=
C
2
xC
9
oHe
3
d
ρ
Label
ID
C
2
2
xC
9
oHe
3
108
C2^2xC9oHe3
324,154
Non-split extensions G=N.Q with N=
C
2
and Q=
C
2
xC
9
oHe
3
extension
φ:Q→Aut N
d
ρ
Label
ID
C
2
.(C
2
xC
9
oHe
3
) =
C
4
xC
9
oHe
3
central extension (φ=1)
108
3
C2.(C2xC9oHe3)
324,108
x
:
Z
F
o
wr
Q
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