https://atcoder.jp/contests/tupc2022/tasks/tupc2022_m?lang=en
M - Fractal Tree Isomorphism
AtCoder is a programming contest site for anyone from beginners to experts. We hold weekly programming contests online.
fractal treeisomorphism
https://mathtourist.blogspot.com/2011/09/pythagorean-fractal-tree.html
The Mathematical Tourist: Pythagorean Fractal Tree
Pythagorean Fractal Tree was designed by Koos Verhoeff , cast in bronze by Anton Bakker and Kevin Gallup, and displayed at the first art ...
mathematicaltouristpythagoreanfractaltree