{ "authors": [], "contributors": [ "arueckauer", "dkinzer", "kunicmarko20", "kytrinyx", "lafent", "petemcfarlane", "Scientifica96", "mk-mxp" ], "files": { "solution": [ "DifferenceOfSquares.php" ], "test": [ "DifferenceOfSquaresTest.php" ], "example": [ ".meta/example.php" ] }, "blurb": "Find the difference between the square of the sum and the sum of the squares of the first N natural numbers.", "source": "Problem 6 at Project Euler", "source_url": "https://projecteuler.net/problem=6" }