SQLite at Google

Dr. Hipp gave recently an introductory talk about SQLite at Google that was recorded in video.

Circular Permutations

I just uploaded to PAUSE a new version of Algorithm::Combinatorics with a generator of circular permutations. That was a breeze to implement fixing the first element and delegating to permutations the generation of arrangements of the rest. Additionally, that's a choice of representants that gives lexicographic order.

I noticed the sequence of numbers of circular permutations has no entry in Sloane's encyclopedia, and so I submitted it tonight.