Arrangements and Combinations · Catalan Numbers: Introduction
Lesson 7
Problem. Let \(Y(n)\) be the number of ways to stack some coins on \(n\) coins. For example, \(Y(3)=5\). What is \(Y(4)\)?
4 points
Arrangements and Combinations · Catalan Numbers: Introduction
Problem. Let \(Y(n)\) be the number of ways to stack some coins on \(n\) coins. For example, \(Y(3)=5\). What is \(Y(4)\)?