Geodesic

Volume 12 (2009) no. 5

Sommaire

Generating functions for the digital sum and other digit counting sequences
On the bi-unitary analogues of Euler's arithmetical function and the gcd-sum function
A search for high rank congruent number elliptic curves
Equidistribution of descents, adjacent pairs, and place-value pairs on permutations
Generalized near-Bell numbers
The number of crossings in a regular drawing of the complete bipartite graph
Notes on a family of Riordan arrays and associated integer Hankel transforms
A note on a one-parameter family of Catalan-like numbers