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Volume 11 (2011)
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A1: Symmetries in Steinhaus Triangles and in Generalized Pascal Triangles
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Josep M. Brunat and Montserrat Maureso
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A2:
Unbounded Discrepancy in Frobenius Numbers
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Jeffrey Shallit and James Stankewicz
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A3:
Combinatorial Interpretations of Convolutions of the Catalan Numbers
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A4:
Quadratic Forms and Four Partition Functions Modulo 3
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Jeremy Lovejoy and Robert Osburn
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A5:
On Bases With a T-Order
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Quan-Hui Yang and Feng-Juan Chen
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A6:
Maximum GCD Among Pairs of Random Integers
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R. W. R. Darling and E. E. Pyle
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A7:
Van der Waerden's Theorem and Avoidability in Words
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Yu-Hin Au, Aaron Robertson, and Jeffrey Shallit
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A8:
On a Class of Ternary Inclusion-Exclusion Polynomials
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Gennady Bachman and Pieter Moree
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A9:
First Remark on a ζ-Analogue of the Stirling Numbers
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A10:
On Product Difference Fibonacci Identities
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A11:
New Sequences That Converge to a Generalization of Euler's Constant
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A12:
On the Number of Factorizations of an Integer
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R. Balasubramanian and Florian Luca
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A13:
Values of the Euler and Carmichael Functions Which Are Sums of Three Squares
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A14:
The Intrinsic Periodic Behaviour of Sequences Related to a Rational Integral
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A15:
Note on the Diophantine Equation Xt + Yt = BZt
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A16:
Coefficients in Powers of the Log Series
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A17:
On a Combinatorial Conjecture
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Thomas W. Cusick, Yuan Li, and Pantelimon Stănică
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A18:
The (Exponential) Bipartitional Polynomials and Polynomial Sequences of Trinomial Type: Part I
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Miloud Mihoubi and Hacène Belbachir
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A19:
A Cauchy-Davenport Type Result for Arbitrary Regular Graphs
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A20:
On Congruent Numbers With Three Prime Factors
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Lindsey Reinholz, Blair K. Spearman, and Qiduan Yang
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A21:
Projective p-Orderings and Homogeneous Integer-Valued Polynomials
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K. Johnson and D. Patterson
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A22:
On the Number of Points in a Lattice Polytope
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Arseniy Akopyan and Makoto Tagami
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A23:
Combinatorial Proofs of Some Identities for the Fibonacci and Lucas Numbers
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Alex Eustis and Mark Shattuck
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A24:
An Extreme Family of Generalized Frobenius Numbers
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Matthias Beck and Curtis Kifer
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A25:
On the Distance Between Smooth Numbers
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Jean-Marie De Koninck and Nicolas Doyon
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A26:
Analogs of the Stern Sequence
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A27:
On Some Equations Related to Ma's Conjecture
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Jiagui Luo, Alain Togbé, and Pingzhi Yuan
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A28:
Normality, Projective Normality and EGZ Theorem
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S. S. Kannan and S. K. Pattanayak
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A29:
The (Exponential) Bipartitional Polynomials and Polynomial Sequences of Trinomial Type: Part II
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Hacène Belbachir and Miloud Mihoubi
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A30:
Supremum of Representation Functions
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G. Grekos, L. Haddad, C. Helou, and J. Pihko
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A31:
Completely Multiplicative Automatic Functions
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Jan-Christoph Schlage-Puchta
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A32:
The k-Periodic Fibonacci Sequence and an Extended Binet's Formula
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Marcia Edson, Scott Lewis, and Omer Yayenie
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A33:
Robin's Theorem, Primes, and a New Elementary Reformulation of the Riemann Hypothesis
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Geoffrey Caveney, Jean-Louis Nicolas, and Jonathan Sondow
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A34:
Reducing the Erdő-Moser Equation 1n + 2n + ... + kn = (k+1)n Modulo k and k2
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Jonathan Sondow and Kieren MacMillan
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A35:
On Some Conjectures Concerning Stern's Sequence and Its Twist
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A36:
Number of Weighted Subsequence Sums With Weights in {1, -1}
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Sukumar Das Adhikari and Mohan N. Chintamani
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A37:
Binomial Coefficient-Harmonic Sum Identities Associated to Supercongruences
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A38:
Euler's Pentagon Number Theorem Implies the Jacobi Triple Product Identity
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Chuanan Wei and Dianxuan Gong
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A39:
On Directions Determined by Subsets of Vector Spaces Over Finite Fields
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Alex Iosevich and Hannah Morgan
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A40:
A Remark on a Paper of Luca and Walsh
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A41:
On the Tennis Ball Problem
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John M. Freeman, Tomas Schonbek, and Wandi Wei
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A42:
On the Conditioned Binomial Coefficients
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A43:
Convolution and Reciprocity Formulas for Bernoulli Polynomials
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Takashi Agoh and Karl Dilcher
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A44:
Counting Finite Languages by Total Word Length
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A45:
Selmer's Multiplicative Algorithm
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A46:
Lucas Numbers and Determinants
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A. R. Moghaddamfar and H. Tajbakhsh
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A47:
A Combinatorial Proof of Guo's Multi-Generalization of Munarini's Identity
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A48:
Enumeration of Triangles in Quartic Residue Graphs
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Mark Budden, Nicole Calkins, William Nathan Hack, Joshua Lambert, and Kimberly Thompson
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A49:
A Remark on the Boros-Moll Sequence
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A50:
A Relation Between Triangular Numbers and Prime Numbers
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Rigoberto Flórez and Leandro Junes
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A51:
Some Remarks on a Paper of V. A. Liskovets
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A52:
A Combinatorial Proof of a Recursive Formula for Multipartitions
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Oleg Lazarev and Holly Swisher
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A53:
Aliquot Cycles of Repdigits
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Florian Luca and Herman te Riele
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A54:
Digital Sums and Functional Equations
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A55:
Odd Catalan Numbers Modulo 2k
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A56:
Variations of the Poincaré Map
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A57:
Diophantine Equations of Matching Games I
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Chun Yin Hui and Wai Yan Pong
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A58:
Norm Euclidean Quaternionic Orders
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A59:
On a Theorem of Prachar Involving Prime Powers
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Taiyu Li and Hengcai Tang
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A60:
A New Proof of Winquist's Identity
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A62:
Codes Associated With O+(2n,2r) and Power Moments of Kloosterman Sums
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A63:
Subprime Factorization and the Numbers of Binomial Coefficients Exactly Divided by Powers of a Prime
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A61:
Counting Depth Zero Patterns in Ballot Paths
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Heinrich Niederhausen and Shaun Sullivan
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A64:
Generalized Nonaveraging Integer Sequences
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A65:
The Robin Inequality for 7-Free Integers
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Patrick Solé and Michel Planat
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A66:
A Novel Approach to the Discovery of Binary BBP-Type Formulas for Polylogarithm Constants
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A67:
A Recurrence Related to the Bell Numbers
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Toufik Mansour and Mark Shattuck
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A68:
Sum-Product Estimates Applied to Waring's Problem Over Finite Fields
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Todd Cochrane and James Cipra
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A69:
On 3-Adic Valuations of Generalized Harmonic Numbers
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A70:
Communal Partitions of Integers
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A71:
On Computation of Exact Van Der Waerden Numbers
Games Articles
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G1:
Analyzing Two-Color Babylon
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Mark Goadrich and Mark Schlatter
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G2:
On the Complexity of Chooser-Picker Positional Games
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András Csernenszky, Ryan R. Martin, and András Pluhár