Strictly chained (p,q)-ary partitions
  We consider a special type of integer partitions in which the parts of the form $p^aq^b$, for some relatively prime integers $p$ and $q$, are restricted by divisibility conditions. We investigate the problems of generating and encoding those partitions and give some estimates for several partition functions. 
Laurent Imbert and Fabrice Philippe
math.NT cs.DM math.CO