New posts in Combinatorics

Check if all vowels exist in pairs of strings

Partition a square grid into parts of equal area

Number of \$n\$-carbon alkanes

Partitioning the grid into triangles

Count arrays that make unique sets

Removing points from a triangular array without losing triangles

Smallest region of the plane that contains all free n-ominoes

Count the number of ways of putting balls into bins

Find The Rank Of A Word

Integer triangles with perimeter less than n