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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
11
:C
20
Direct product G=NxQ with N=
C
2
and Q=
C
11
:C
20
d
ρ
Label
ID
C
2
xC
11
:C
20
88
C2xC11:C20
440,10
Non-split extensions G=N.Q with N=
C
2
and Q=
C
11
:C
20
extension
φ:Q→Aut N
d
ρ
Label
ID
C
2
.(C
11
:C
20
) =
C
11
:C
40
central extension (φ=1)
88
10
C2.(C11:C20)
440,1
x
:
Z
F
o
wr
Q
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