Geodesic

Volume 9 (2006) no. 4

Sommaire

On a generalization of the coin exchange problem for three variables
Quasi-Fibonacci numbers of the seventh order
General properties involving reciprocals of binomial coefficients
On a number pyramid related to the binomial, Deleham, Eulerian, MacMahon and Stirling number triangles
Sums involving the inverses of binomial coefficients
On the distribution of perfect totients
The number of inequivalent (2R+3,7)R optimal covering codes
Infinite sets of integers whose distinct elements do not sum to a power