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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=
Dic
7
and Q=
C
15
Direct product G=N×Q with N=
Dic
7
and Q=
C
15
d
ρ
Label
ID
C
15
×Dic
7
420
2
C15xDic7
420,5
Semidirect products G=N:Q with N=
Dic
7
and Q=
C
15
extension
φ:Q→Out N
d
ρ
Label
ID
Dic
7
⋊C
15
=
C
5
×C
7
⋊C
12
φ:
C
15
/
C
5
→
C
3
⊆ Out
Dic
7
140
6
Dic7:C15
420,1
×
⋊
ℤ
𝔽
○
≀
ℚ
◁