Geodesic

Sommaire du Fascicule no. 1

On the sum of iterations of the Euler function
14-term arithmetic progressions on quartic elliptic curves
A note on the postage stamp problem
Statistics on Dyck paths
A combinatorial interpretation of the eigensequence for composition
The $k$-binomial transforms and the Hankel transform
A family of meta-Fibonacci sequences defined by variable-order recursions
A relation between restricted and unrestricted weighted Motzkin paths

Sommaire du Fascicule no. 2

Independent sets on path-schemes
The number of topologies on a finite set
On integer-sequence-based constructions of generalized Pascal triangles
On the divisibility of generalized central trinomial coefficients
On the dominance partial ordering of Dyck paths
Integer sequences and matrices over finite fields
Evaluations of some variant Euler sums
Asymptotically exact heuristics for prime divisors of the sequence $\{a^k+b^k\}^\infty_{k=1}$

Sommaire du Fascicule no. 3

Periodicity and parity theorems for a statistic on $r$-mino arrangements
All elite primes up to 250 billion
A recursive formula for the Kolakoski sequence A000002
Converting between generalized Bell, Lah, Stirling, and Tanh numbers
Lattice path enumeration of permutations with $k$ occurrences of the pattern 2--13
On the Farey fractions with denominators in arithmetic progression
Sequences of reducible $\{0,1\}$-polynomials modulo a prime
On the sequence A079500 and its combinatorial interpretations

Sommaire du Fascicule no. 4

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