yaworsw/euler-manager

---
:id: 223
:name: Almost right-angled triangles I
:url: https://projecteuler.net/problem=223
:content: "Let us call an integer sided triangle with sides <var>a</var> ≤ <var>b</var>
  ≤ <var>c</var> _barely acute_ if the sides satisfy   \n<var>a</var><sup>2</sup>
  + <var>b</var><sup>2</sup> = <var>c</var><sup>2</sup> + 1.\n\nHow many barely acute
  triangles are there with perimeter ≤ 25,000,000?\n\n"