New posts in combinatorics

Players tournament

combinatorics

Stirling numbers of the second kind on Multiset

combinatorics discrete-mathematics stirling-numbers multisets

Dyck paths with $k$ peaks

combinatorics catalan-numbers

Behavior of Pascal's triangle in $n\mod m$ where $m>2$, any fractals?

combinatorics binomial-coefficients fractals

Binomial Congruence

combinatorics number-theory binomial-coefficients

What is an intuitive explanation of the combinations formula? [duplicate]

combinatorics permutations combinations

Intermediate Text in Combinatorics?

combinatorics reference-request book-recommendation

How many maximum number of isosceles triangle are possible in a regular polygon of $n$ sides?

geometry combinatorics

What is the number of bijections between two multisets?

combinatorics graph-theory elementary-set-theory multisets

A combinatorial proof of the identity: $\sum_{k=1}^n k \binom{n}{k}^2 = {n}\binom{2n-1}{n-1}$?

combinatorics summation permutations combinations combinatorial-proofs

Curious combinatorial summation

combinatorics discrete-mathematics binomial-coefficients

Combinatorial number theory, what is $\lim_{n \to \infty} {\ln f(n)\over \ln n}$?

combinatorics number-theory analytic-number-theory combinatorial-number-theory

Product of simplicial complexes?

combinatorics algebraic-topology simplicial-stuff

How many natural solutions to $x_1+x_2+x_3+x_4=100$ with $x_1 \neq x_2 \neq x_3 \neq x_4$?

combinatorics combinations

Number of apples on the tree after n days?

sequences-and-series combinatorics algebra-precalculus

Motivation/intuition behind using linear algebra behind these combinatorics problem

linear-algebra combinatorics algebraic-combinatorics

Coloring $n$ chain with $k$ colors

combinatorics discrete-mathematics polya-counting-theory

Alice, Bob and his 1956-Triumph [closed]

combinatorics

How many ways to seat $n$ couples so that each husband's neighbors can only be his wife or another gentleman?

combinatorics recurrence-relations contest-math recursion

Results related to The Happy Ending Problem

geometry combinatorics discrete-geometry