The Futility Closet people recently posted “A Square Circle“, in which they showed:
49² + 73² = 7730
77² + 30² = 6829
68² + 29² = 5465
54² + 65² = 7141
71² + 41² = 6722
67² + 22² = 4973
which is a nice little result. I like this sort of recreational maths, so I spent a little time …