balls.mws
The four basic models
Distinguishable balls (labelled structures)
Distinguishable urns
Indistinguishable urns (set partitions)
Indistinguishable balls (unlabelled structures)
Distinguishable urns (integer compositions)
Indistinguishable urns (integer partitions)
Constrained models
Number of urns in surjections
Number of parts in integer compositions
Number of parts in integer partitions
Bounded capacity in the DBDU model (hashing)
Bounded capacity in the IBDU model (bosons)
Stack polyominoes
A problem in submarine detection
The word counting problem
The integer composition problem
Fixing the number of boxes