It’s the one from Niklas Ronnberg here: http://familjenronnberg.se/~niklas/diy/eurorack/divider/
I just added the 1/64 and 1/128 dividers by repeated the output circuit on pins 3 and 4. My stripboard layout and full details are in this post: My first DIY modules - starting a Kosmo format build - #122 by juggle