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About
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
7
:C
3
and Q=
C
20
Direct product G=NxQ with N=
C
7
:C
3
and Q=
C
20
d
ρ
Label
ID
C
20
xC
7
:C
3
140
3
C20xC7:C3
420,4
Semidirect products G=N:Q with N=
C
7
:C
3
and Q=
C
20
extension
φ:Q→Out N
d
ρ
Label
ID
C
7
:C
3
:C
20
=
C
5
xC
7
:C
12
φ:
C
20
/
C
10
→
C
2
⊆ Out
C
7
:C
3
140
6
C7:C3:C20
420,1
x
:
Z
F
o
wr
Q
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