Number of permutations $\alpha\in S_{n}$ with $\alpha^{2}=1$
48268
How many $\alpha \in S_n$ are such that $\alpha^2 = 1$?
14383
Order of Permutation : If $\tau \in S_n$ has order $m$, then $\sigma \tau\sigma^{-1}$ has also order $m$.
15000
Show that number of elements in $(Z/nZ)^*$ is $\phi (n)$
114752
Number of permutations of a specific cycle decomposition
101751
The number of words that can be made by permuting the letters of _MATHEMATICS_ is
103625
Number of increasing functions from $\{1,2,\dots, n\}$ to itself.
144571
A conjecture including binomial coefficients
148703
Permutations with repeating digits
126025
Computing the inverse of a permutation
123567
Number of permutations which are products of exactly two disjoint cycles.
151520
About the parity of the product $(a_1-1)(a_2-2)\cdots(a_n-n)$
11967
number of subsets of even and odd
44480
Let $\sigma :\{1,2,3,4,5\} \rightarrow \{1,2,3,4,5\}$ be permutations such that $ \sigma^{-1}(j) \leq \sigma(j)~\forall j, 1 \leq j \leq 5$.
37012
The number of summands $\phi(n)$
83615
split conjugacy class in $S_n$ into two equal size conjugacy classes in $A_n$
57221
counting the number of elements in a conjugacy class of $S_n$
107964
Simple combinatorics problem.