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gistfile1.txt

var pascal = [
     [1],
    [1,1],
   [1,2,1],
  [1,3,3,1],
 [1,4,6,4,1]
];

function generetaPascal(numRows) {
	var triangle;

	function pyramid(targetSum) {
		if (triangle.length === numRows) {
			return triangle;
		}

		// get new sum by checking the length of the last sum in the triangle and multiply it by two
		// wanted length = triangle.length - 2
		// rest = wantedSum - 2
		// 

		if (numRows.length === 0) {
			triangle.push([1]);
		} else if (numRows.length === 1) {
			triangle.push([1]);
		} else {
			var newSum = pascal.length * 2;
			var wantedLen = triangle.length - 2;
			var specialChar = pascal.length;
			var rest = newSum - 2 - (specialChar * 2);

			if (newSum === specialChar + 2) {
				triangle.push(1, specialChar, 1);
				return;
			} else {

			}


			triangle.push([1, specialChar, Number([].join()), specialChar, 1]);
		}

		restNumArr = [];
	}

	pyramid(triangle.length * 2);
	pyramid(1);

	return triangle;
}


1, pascal.length
2, pascal.length * 2
4, pascal.length * 2
8, pascal.length * 2
16, pascal.length * 2

gistfile2.txt

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