A Very Short (Bijective!) Proof of Touchard's Catalan Identity
arXiv:1503.04665
Abstract
A very short, bijective proof, of Touchard's Catalan identity is given, using Dyck paths.
Adding comments acknowledging previous discovery
arXiv:1503.04665
A very short, bijective proof, of Touchard's Catalan identity is given, using Dyck paths.
Adding comments acknowledging previous discovery