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Some combinatorial identities containing central binomial coefficients or Catalan numbers*

open access: yesApplied Mathematics in Science and Engineering, 2023
In the article, by virtue of Maclaurin's expansions of the arcsine function and its square and cubic, the authors give a short proof of a sum formula of a Maclaurin's series with coefficients containing reciprocals of the Catalan numbers; establish four ...
Feng Qi, Da-Wei Niu, Dongkyu Lim
doaj   +4 more sources

Infinite series containing quotients of central binomial coefficients [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
By making use of the Wallis' integral formulae and integration by parts, two classes of infinite series are evaluated, in closed form, in terms of π and Riemann zeta function.
Zhiling Fan
doaj   +3 more sources

A short derivation of an elegant sum involving central binomial coefficients due to László via a hypergeometric series approach [PDF]

open access: yesContributions to Mathematics, 2022
The aim of this short note is to establish an elegant sum involving central binomial coefficients, due to L´aszl´o [ Amer. Math. Monthly 108 (2001) 851–855], via a hypergeometric series approach.
Dongkyu Lim, Arjun K. Rathie
doaj   +2 more sources

Several identities containing central binomial coefficients and derived from series expansions of powers of the arcsine function [PDF]

open access: yesResults in Nonlinear Analysis, 2021
In the paper, with the aid of the series expansions of the square or cubic of the arcsine function, the authors establish several possibly new combinatorial identities containing the ratio of two central binomial coefficients which are related to the ...
Feng Qi, Chao-Ping Chen , Dongkyu Lim
doaj   +2 more sources

Convolution identities involving the central binomial coefficients and Catalan numbers [PDF]

open access: yesTransactions on Combinatorics, 2021
We generalize some convolution identities due to Witula and Qi et al‎. ‎involving the central binomial coefficients and Catalan numbers‎. ‎Our formula allows us to establish many new identities involving these important quantities‎, ‎and recovers some ...
Necdet Batır, Hakan Kucuk, Sezer Sorgun
doaj   +2 more sources

Applications of Lehmer’s Infinite Series Involving Reciprocals of the Central Binomial Coefficients

open access: yesJournal of Function Spaces, 2022
The main objective of this paper is to establish several new closed-form evaluations of the generalized hypergeometric function Fq+1qz for q=2,3,4,5. This is achieved by means of separating the generalized hypergeometric function Fq+1qz (q=2,3,4,5) into ...
B. R. Srivatsa Kumar   +2 more
doaj   +2 more sources

Series associated with harmonic numbers, Fibonacci numbers and central binomial coefficients $binom{2n}{n}$ [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
We find various series that involve the central binomial coefficients $binom{2n}{n}$, harmonic numbers and Fibonacci numbers. Contrary to the traditional hypergeometric function _pF_q approach, our method utilizes a straightforward transformation to ...
Segun Olofin Akerele   +1 more
doaj   +2 more sources

Harmonic Series of Convergence Ratio “1/4" with Cubic Central Binomial Coefficients

open access: yesAxioms
We examine a useful hypergeometric transformation formula by means of the coefficient extraction method. A large class of “binomial/harmonic series” (of convergence ratio “1/4”) containing the cubic central binomial coefficients and harmonic numbers is ...
Chunli Li, Wenchang Chu
doaj   +2 more sources

Odd Euler Sums and Harmonic Series with Cubic Central Binomial Coefficients in Denominators

open access: yesAxioms
By means of the coefficient extraction method, we examine a transformation of a classical hypergeometric series. Three classes of infinite series (of convergence rate “1/4”) with harmonic numbers in numerators and cubic central binomial coefficients in ...
Chunli Li, Wenchang Chu
doaj   +2 more sources

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