Counting & ProbabilityEasyRecursion, Catalan Numbers & Generating Functions ShareRecursion, Catalan Numbers & Generating Functions · Easy problemUse Cn=1n+1(2nn)C_n=\frac{1}{n+1}\binom{2n}{n}Cn=n+11(n2n) to compute C5C_5C5.Check Show answer Walk through it step by step Practice more like this Review this concept