RE: https://fosstodon.org/@drdrang/116224540395844092

Inspired by this post, I decided to try to replicate Dr. Drang's Python script finding the frequency of the 13th day of the month in #fsharp. And no, I'm not trying to home on in his territory!

https://blog.samirparikh.com/2026/03/using-f-sequences-to-count-instances-of.html