sympy/sympy — pull request #7863 by postvakje (2014-08-14 01:48:11+00:00)
Title: Antidivisors

Implemented functions to compute antidivisors and the number of
antidivisors. Antidivisors are the numbers that do not divide a number
by the largest possible margin.

References
==========

- [1] http://oeis.org/A066272/a066272a.html