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C
n
D
n
S
n
A
n
Degree
Linear
Irr Reps
Characters
×
⋊
.
○
≀
Extensions
1→N→G→Q→1 with N=
C
7
2
⋊C
3
and Q=
C
3
Direct product G=N×Q with N=
C
7
2
⋊C
3
and Q=
C
3
d
ρ
Label
ID
C
3
×C
7
2
⋊C
3
147
C3xC7^2:C3
441,11
Semidirect products G=N:Q with N=
C
7
2
⋊C
3
and Q=
C
3
extension
φ:Q→Out N
d
ρ
Label
ID
C
7
2
⋊C
3
⋊C
3
=
C
7
⋊C
3
2
φ:
C
3
/
C
1
→
C
3
⊆ Out
C
7
2
⋊C
3
21
9
C7^2:C3:C3
441,9
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𝔽
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≀
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◁