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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=
3
-
 1+2
and Q=
D
7
Direct product G=N×Q with N=
3
-
 1+2
and Q=
D
7
d
ρ
Label
ID
D
7
×3
-
 1+2
63
6
D7xES-(3,1)
378,31
Semidirect products G=N:Q with N=
3
-
 1+2
and Q=
D
7
extension
φ:Q→Out N
d
ρ
Label
ID
3
-
 1+2
⋊D
7
=
D
63
⋊C
3
φ:
D
7
/
C
7
→
C
2
⊆ Out
3
-
 1+2
63
6+
ES-(3,1):D7
378,39
×
⋊
ℤ
𝔽
○
≀
ℚ
◁