Teaching Kids Programming – Introduction to Combinatorial Mathematics 2 (Catalan Number)

Introduction to Combinatorial Mathematics (2): Catalan Numbers Catalan numbers are one of the most important sequences in combinatorics . They appear in many counting problems that look very different on the surface, but actually share the same underlying structure: balance, recursion, and non-crossing constraints. In this post, we will introduce the Catalan numbers, show several important…