Newbetuts

How many permutations of $\{1, \ldots, n\}$ exist such that none of them contain $(i, i+1)$ (as a sequence) for $i \in {1,...,(n-1)}$?

Distributing identical objects to identical boxes

Product of Non-Disjoint Cycles

Fixed points in random permutation [closed]

On Conjugacy Classes of Alternating Group $A_n$

How many $\alpha \in S_n$ are such that $\alpha^2 = 1$?

Image and kernel of the action of the group $D_{12}$ on the $D_{12}/H$

Arrangement of integers in a row such that the sum of every two adjacent numbers is a perfect square.

What do all the $k$-cycles in $S_n$ generate?

How many five digit numbers divisible by $3$ can be formed using the digits $0,1,2,3,4,7$ and $8$ if each digit is to be used at most once

Derivation of the formula for ${ }_{n} P_{r}=\frac{n !}{(n-r) !}$ and ${ }_{n} C_{r}=\frac{n !}{r !(n-r) !}$

circular r-permutations of n

Involutions, RSK and Young Tableaux

Math puzzle: 10 digit strings generations

New posts in permutations

Finding the centralizer of a permutation

fundamental counting principle, permutations, counting arrangements of events

Derangement of $n$ elements

Is there a group which has precisely all finite groups as subgroups?

Stabilizers in a permutation group

sum of all the numbers that can be formed using the digits 2,3,3,4,4,4..

How many permutations of $\{1, \ldots, n\}$ exist such that none of them contain $(i, i+1)$ (as a sequence) for $i \in {1,...,(n-1)}$?

Distributing identical objects to identical boxes

Product of Non-Disjoint Cycles

Fixed points in random permutation [closed]

On Conjugacy Classes of Alternating Group $A_n$

How many $\alpha \in S_n$ are such that $\alpha^2 = 1$?

Image and kernel of the action of the group $D_{12}$ on the $D_{12}/H$

Arrangement of integers in a row such that the sum of every two adjacent numbers is a perfect square.

What do all the $k$-cycles in $S_n$ generate?

How many five digit numbers divisible by $3$ can be formed using the digits $0,1,2,3,4,7$ and $8$ if each digit is to be used at most once

Derivation of the formula for ${ }_{n} P_{r}=\frac{n !}{(n-r) !}$ and ${ }_{n} C_{r}=\frac{n !}{r !(n-r) !}$

circular r-permutations of n

Involutions, RSK and Young Tableaux

Math puzzle: 10 digit strings generations