Accompanying these notes is a Maple package "EastWest"
for the generation of combinatorial objects. This package
will do any of the six functions Count, List, Rank,
Random, Unrank, Successor, on any of the seven
combinatorial families

- k-subsets of an n-set
- permutations of n things with k cycles
- partitions of a set of n things with k classes
- partitions of an integer n into k parts
- ordered partitions of n into k nonnegative parts
- permutations of n letters with k runs
- partitions of an integer n whose largest part is k

or 42 tasks altogether. Additional families can easily be incorporated into the package. Comments and bug reports are invited. The package is a Maple file "EastWest.m". To use the package,

- 1. Download it to your computer.

2. Open a Maple worksheet.

3. Enter

`read `/your path.../EastWest.m`;`

4. Enter

`hello();`

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