https://pypi.org/project/combinatorics/ Recent updates to the Python Package Index for Combinatorics en https://pypi.org/project/combinatorics/1.4.5/ This module was created to supplement Python's itertools module, filling in gaps in the following areas of basic combinatorics: (A) ordered and unordered m-way combinations, (B) generalizations of the four basic occupancy problems ('balls in boxes'), and (C) constrained permutations, otherwise known as the 'off-by-m' problem. Phillip.M.Feldman@gmail.com Sun, 08 Feb 2015 02:27:19 GMT