--description--

Let us call an integer sided triangle with sides $a ≤ b ≤ c$ barely acute if the sides satisfy $a^2 + b^2 = c^2 + 1$.

How many barely acute triangles are there with perimeter $≤ 25\,000\,000$?

--hints--

almostRightAngledTrianglesOne() should return 61614848.

assert.strictEqual(almostRightAngledTrianglesOne(), 61614848);

--seed--

--seed-contents--

function almostRightAngledTrianglesOne() {

  return true;
}

almostRightAngledTrianglesOne();

--solutions--

// solution required