diagrams(ZZ,ZZ,ZZ) -- Partitions contained in a rectangle

• Function: diagrams

• Usage:

  diagrams(k,n,d)

• Inputs:
  • k, an integer, maximum size of each entry in partitions
  • n, an integer, number of entries in partition
  • d, an integer, number being partitioned
• Outputs:
  • a list of lists of integers $\{a_1, \dots, a_n\}$ such that $k \geq a_1 \geq ... \geq a_n \geq 0$ and $\sum_{i=1}^n a_i = d$