Software I maintain or maintained

I maintain or have maintained various software (mostly but not all free software and open source software), detailed below. I have also contributed to many other pieces of free software. Unreleased software, and ad hoc programs (possibly released in places such as mailing lists, the On-Line Encyclopedia of Integer Sequences or in conjunction with publications listed on my publications page, but never maintained as a software package on an ongoing basis), are not covered here.

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Last updated: 10 February 2019