How many ways there are to arrange 40 people to play exactly one match each?
110264
Why are there $\frac{(2n)!}{2^nn!}$ ways to break $2n$ people into partnerships?
41205
Help me solve a combinatorial problem
94141
$20$ people are sitting around a (circular) table. How many ways can we choose $3$ people, no two of whom are neighbors?
67817
Number of ways to distribute 5 distinguishable balls between 3 kids such that each of them gets at least one ball
42324
Expected number of matches when two shuffled rows of $52$ playing cards are lined up
36287
How to create all possible permutations?
53582
More than one person should be able to offer a bounty for the same question at the same time
21245
What is the maximum number of people that will join a settlement?
154561
Finding number of ways of selecting 6 gloves each of different colour from 18 gloves?
128051
Calculating possible option of switching pairs in group
963
Does Forbidden Island usually need any rule variants for playing with 5+ people?
97265
count the ways to fill a $4\times n$ board with dominoes
150726
determine the least number of rounds that needs to be played so that every child is satisfied
21598
A game of guessing a chosen number
140806
How do I tackle this combinatorics problem about married couples around a table?
124508
Pick the closest number game
54674
combinations groups question