Well that's certainly interesting. I was about to say, it reminds me strongly of a zeta function, in a way. But it turns out Dedekind's eta function was what

Well that's certainly interesting. I was about to say, it reminds me strongly of a zeta function, in a way. But it turns out Dedekind's eta function was what I was thinking of [1] [1] https://en.wikipedia.org/wiki/Dedekind_eta_function#mediaviewer/File:Discriminant_real_part.jpeg https://en.wikipedia.org/wiki/Dedekind_eta_function#mediavie...