The best I could find were these:
https://archive.org/details/hokusaiimayoyhi00kats/page/5/mod...
https://archive.org/details/imayoykushikisev1kats/page/19/mo...
Are you sure you're remembering right?
Here's archive's list of Hokusai books:
https://archive.org/search?query=creator%3A%22Katsushika%2C+...
Thanks for the links. There are one or two in common with what I had in mind. I suppose those weren't his 'published' works but personal studies in geometry and tiling.