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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
3
and Q=
C
4
2
⋊C
9
Direct product G=N×Q with N=
C
3
and Q=
C
4
2
⋊C
9
d
ρ
Label
ID
C
3
×C
4
2
⋊C
9
108
C3xC4^2:C9
432,101
Non-split extensions G=N.Q with N=
C
3
and Q=
C
4
2
⋊C
9
extension
φ:Q→Aut N
d
ρ
Label
ID
C
3
.(C
4
2
⋊C
9
) =
C
4
2
⋊C
27
central extension (φ=1)
108
3
C3.(C4^2:C9)
432,3
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