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Volume 12 (2012)
A1:
The Number of Permutations with Prescribed Up-Down Structure as a Function of Two Variables
Vladimir Shevelev
A2:
A (-β)-Expansion Associated to Sturmian Sequences
Fumihiko Nakano and Taizo Sadahiro
A3:
A Correlation Identity for Stern's Sequence
Michael Coons
A4:
On Weakly Complete Sequences Formed by the Greedy Algorithm
Michael P. Knapp and Michael D. Paul
A5:
Bijective Proofs of Vajda's Ninetieth Fibonacci Number Identity and Related Identities
Nathaniel Shar
A6:
Newman Polynomials, Reducibility, and Roots on the Unit Circle
Idris Mercer
A7:
A Property of Twin Primes
Christian Aebi and Grant Cairns
A8:
Partition of an Integer into Distinct Bounded Parts, Identities and Bounds
Mohammadreza Bidar
A9:
Primitive Prime Divisors in Zero Orbits of Polynomials
Kevin Doerksen and Anna Haensch
A10:
On the Number of Carries Occurring in an Addition Mod 2k-1
Jean-Pierre Flori and Hugues Randriam
A11:
Fibonacci Variations of a Conjecture of Polignac
Lenny Jones
A12:
A Probabilistic Look at Series Involving Euler's Totient Function
Yung-Pin Chen
A13:
Extending Nathanson Heights to Arbitrary Finite Fields
Mario Huicochea
A14:
The Maximal Cross Number of Unique Factorization Zero-sum Sequences Over A Finite Abelian Group
Weidong Gao and Linlin Wang
A15:
An Explicit Bound for Aliquot Cycles of Repdigits
