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This is wonderful! I’d somehow missed the classical enumeration of Pythagorean triples. I learned them as magic numbers. That structure alone is worth the price of admission.

You changed the article's title to an incorrect one. The tree of primitive Pythagorean triples is ternary, not binary. Each node has three children.

There are Pythagorean triples (a, b, c) for which there do not exist integers m, n with a = m^2 - n^2, b = 2mn, c = m^2 + n^2.

Wow, this is extremely cool! Only problem, the JS slows my Firefox almost to freezing, is it normal?

Very nice! nit: website isn’t mobile friendly

Beautiful. Thanks for sharing.