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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
5
2
:
4
Q
8
Direct product G=NxQ with N=
C
2
and Q=
C
5
2
:
4
Q
8
d
ρ
Label
ID
C
2
xC
5
2
:
4
Q
8
400
C2xC5^2:4Q8
400,191
Non-split extensions G=N.Q with N=
C
2
and Q=
C
5
2
:
4
Q
8
extension
φ:Q→Aut N
d
ρ
Label
ID
C
2
.
1
(C
5
2
:
4
Q
8
) =
C
10
2
.
22
C
2
2
central extension (φ=1)
400
C2.1(C5^2:4Q8)
400,100
C
2
.
2
(C
5
2
:
4
Q
8
) =
C
20
:
3
Dic
5
central extension (φ=1)
400
C2.2(C5^2:4Q8)
400,101
x
:
Z
F
o
wr
Q
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