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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
4
○D
4
and Q=
C
21
Direct product G=N×Q with N=
C
4
○D
4
and Q=
C
21
d
ρ
Label
ID
C
4
○D
4
×C
21
168
2
C4oD4xC21
336,207
Semidirect products G=N:Q with N=
C
4
○D
4
and Q=
C
21
extension
φ:Q→Out N
d
ρ
Label
ID
C
4
○D
4
⋊C
21
=
C
7
×C
4
.A
4
φ:
C
21
/
C
7
→
C
3
⊆ Out
C
4
○D
4
112
2
C4oD4:C21
336,170
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○
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ℚ
◁