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Volume 6 (2006) 
- 
A1: 
On the Largest k-primitive Subset of [1,n]
- 
A2:
A Bijective Proof of
fn+4+f1 + 2f2 + ... +
n fn = (n+1)fn+2+3
  
- 
A3:
Permutations of the Natural Numbers
with Prescribed Difference Multisets
- 
Peter Hegarty and Urban Larsson
 
- 
A4:
Simpson's Paradox in the Farey Sequence 
- 
Rasa Šleževičienė-Steuding and
Jörn Steuding
 
- 
A5:
The Akiyama-Tanigawa Algorithm for Carlitz's q-Bernoulli Numbers
 
- 
A6:
On the Equation m-1 = a  (m) (m)
- 
A7:
Partitions into Sum-free Sets
- 
Peter F. Blanchard, Frank Harary, and Rogério Reis
 
- 
A8:
Factorizations and Paige's Theorem on Complete Maps
 
- 
A9:
On a Special Congruence of Carlitz
 
- 
A10:
Integrality of quotients of Wronskians of the Andrews-Gordon Series
 
- 
A11:
The Dinner Table Problem:  The Rectangular Case
 
- 
A12:
Linear Recurrent Sequences and Powers of a Square Matrix
- 
Hacène Belbachir and Farid Bencherif
 
- 
A13:
The Size of the Largest Part of Random Plane
Partitions of Large Integers
 
- 
A14:
On a Linear Diophantine Problem of Frobenius
 
- 
A15:
On Sums of Squares of Pell-Lucas Numbers
- 
Zvonko Čerin and Gian Mario Gianella 
 
- 
A16:
On the Irreducibility of {-1,0,1}-Quadrinomials
- 
Carrie Finch and Lenny Jones
 
- 
A17:
A Generalization of an IMO Problem
 
- 
A18:
Character Sums and Ramsey Properties of Generalized Paley Graphs
 
- 
A19:
The General gcd-Product Function
 
- 
A20:
On Mod p Logarithms loga b
and logb a 
 
- 
A21:
Congruences with Factorials Modulo p
- 
Yong-Gao Chen and Li-Xia Dai
 
- 
A22:
Counting Polyominoes on Twisted Cylinders
- 
Gill Barequet, Micha Moffie, Ares Ribó, and Günter Rote
 
- 
A23:
A Generalization of the Smarandache Function to
Several Variables
- 
Norbert Hungerbühler and Ernst Specker
 
- 
A24:
The Cube of the Fermat Quotient
- 
Karl Dilcher and Ladislav Skula
 
- 
A25:
Some Observations on Subset Sum Representations
- 
A26:
On the Entry Sum of Cyclotomic Arrays
- 
Don Coppersmith and John Steinberger
 
- 
A27:
Sums of Reciprocals of the Central Binomial Coefficients
- 
A28:
An Improved Upper Bound on the Maximum Size of k-Primitive Sets
- 
A29:
On the Growth of a Van Der Waerden-Like Function
- 
A30:
Davenport Constant with Weights and Some Related Questions
- 
Sukumar Das Adhikari and Purusottam Rath
 
- 
A31:
A Study of Eulerian Numbers for Permutations in the Alternating Group
- 
A32:
More on the Fibonacci Sequence and Hassenberg Matrices
- 
A33:
Trivial Selmer Groups and Even Partitions of a Graph
- 
Morgan V. Brown, Neil J. Calkin, Kevin James, Adam J. King, Shannon Lockard, and Robert C Rhoades
 
- 
A34:
Enumerating Segmented Patterns in Compositions and Encoding by Restricted Permutations
- 
Sergey Kitaev, Tyrrell B. McAllister, and T. Kyle Petersen
 
- 
A35:
Combinatorial Proof of Some Moriarty-Type Binomial Coefficient Identities
 
- 
A36:
Some Properties of the Euler Quotient Matrix
Games Articles
- 
G1: 
Mathematics of Ghaly's Machine
- 
G2: 
A Deletion Game on Graphs:  Le Pic Arête
- 
Lois Blanc, Eric Duchêne, and Sylvain Gravier
 
- 
G3: 
King and Rook Vs. King on a Quarter-Infinite Board
- 
Richard M. Low and Mark Stamp