Stanley's Identity
See also
Binomial SumsExplore with Wolfram|Alpha
References
Koepf, W. Hypergeometric Summation: An Algorithmic Approach to Summation and Special Function Identities. Braunschweig, Germany: Vieweg, p. 41, 1998.Strehl, V. "Binomial Identities--Combinatorial and Algorithmic Aspects." Discrete Math. 136, 309-346, 1994.Referenced on Wolfram|Alpha
Stanley's IdentityCite this as:
Weisstein, Eric W. "Stanley's Identity." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/StanleysIdentity.html