Number of different ways of filling $N \times 4$ rectangle with Dominoes
97265
count the ways to fill a $4\times n$ board with dominoes
29713
$k$ times's draw from $n$ numbers with replacement, each number at least appear once
151090
Creating A Nested Mathematical Sets Inside A Rectangle
65843
Number of possible combinations of x numbers that sum to y
68882
Path to Combinatorics Problem [$1.11$]
153370
Number of different partitions of N
127701
How many distinct ways are there to $2$-color the $8$ vertices of a cube?
89611
Combinations of selecting $n$ objects with $k$ different types
142180
There are 'n' candies and 't' boxes. Find the number of ways to place the candies in the boxes for each of the conditions (given in the problem).
57319
Number of Ways to Fill a Matrix with symbols subject to Weird contsraint.
142477
Closed-form expression for the number of $k$-permutations of length $n$. Duplicates allowed!
140858
Number of ways to choose 6 objects when they are of 11 different kinds
649
Dominoes and induction, or how does induction work?
57236
How many different combinations of a six sided die rolls equals n
134599
How do I do Combinatorics / Counting?
116647
The number of different ways to choose $k$ out of $n$ unique items
36287
How to create all possible permutations?