Combinations            Combinations iterator
Compositions            Compositions iterator
Partitions              Partitions iterator
Permutations            Permutations iterator
arrangements-package    arrangements: Fast Generators and Iterators for
                        Permutations, Combinations, Integer Partitions
                        and Compositions
combinations            Combinations generator
compositions            Compositions generator
ncombinations           Number of combinations
ncompositions           Number of compositions
npartitions             Number of partitions
npermutations           Number of permutations
partitions              Partitions generator
permutations            Permutations generator
