[abetusk]

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+...

[srean]

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.