Results 31 to 40 of about 46,123 (300)
Practical numbers among the binomial coefficients [PDF]
A practical number is a positive integer n such that every positive integer less than n can be written as a sum of distinct divisors of n. We prove that most of the binomial coefficients are practical numbers. Precisely, letting f(n) denote the number of
Sanna Carlo, Leonetti P, Leonetti Paolo
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Sums of Reciprocals of Triple Binomial Coefficients
We investigate the integral representation of infinite sums involving the reciprocals of triple binomial coefficients. We also recover some wellknown properties of 𝜁(3) and extend the range of results given by other authors.
A. Sofo
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On some series involving the binomial coefficients $binom{3n}{n}$ [PDF]
Using a simple transformation, we obtain much simpler forms for some series involving binomial coefficients $binom{3n}{n}$ derived by Necdet Batir. New evaluations are given and connections with Fibonacci numbers and the golden ratio are established ...
Kunle Adegoke +2 more
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Binomial coefficients and their visualization [PDF]
In this paper, the authors present some of the results achieved by mathematicians who belonged to different cultures and lived in different time periods, but were engaged in determining (formula for determining) binomial coefficients.
Popović, Branislav +3 more
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This paper presents a theorem on the binomial coefficients of combinatorial geometric series and its solutions for the binomial expression under the partitions of the binomial coefficients.
Chinnaraji Annamalai
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Ray trajectories, binomial coefficients of a new type, and the binary system [PDF]
The paper describes a new algorithm of construction of the nonlinear arithmetic triangle on the basis of numerical simulation and the binary system. It demonstrates that the numbers that fill the nonlinear arithmetic triangle may be binomial coefficients
Aleksandr Vladimirovich Yurkin
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Tables of binomial coefficients and Stirling numbers
Tables of Binomial coefficients and of Stirling numbers are given, along with the most important formulas and relationships satisfied by them.
Goldberg, Karl; Leighton, Frank T.; Newman, Morris; Zuckerman, Susan L.
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Inequalities for Binomial Coefficients
For any real number \(r\) with \(r>1\), let \(c_r= (2\pi(1-{1\over r}))^{-1/2}\) and \(d_r= (r-1)/(1-{1\over r})^r\). Let \(B_{2m}\) \((m= 1,2,\dots)\) be the Bernoulli numbers defined by \[ {z\over e^z-1}=1-{z\over 2}+\sum^\infty_{m=1} B_{2m}{z^{2m}\over (2m)!}.
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Plane Partitions and a Problem of Josephus
The Josephus Problem is a mathematical counting-out problem with a grim description: given a group of n persons arranged in a circle under the edict that every kth person will be executed going around the circle until only one remains, find the position ...
Mircea Merca
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A generalization of the binomial coefficients
We pose the question of what is the best generalization of the factorial and the binomial coefficient. We give several examples, derive their combinatorial properties, and demonstrate their interrelationships. On cherche ici à déterminer est la meilleure généralisation possible des factorielles et des coefficients du binôome. On s'interesse à plusieurs
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