GFact | Catalan Numbers Improve Improve Like Article Like Save Share Report The number of structurally different Binary Trees with n nodes is Catalan number Cn = (2n)!/(n+1)!*n! References: http://mathworld.wolfram.com/BinaryTree.html Last Updated : 17 Oct, 2023 Like Article Save Article Previous GFact | Bootstrapped Programming languages Next GFact | Enumeration constants Share your thoughts in the comments Add Your Comment Please Login to comment...