Jóladagatal 9/24 - Skrítnar tölur

results-1B.txt

81
2.025
3.025
9.801
494.209
998.001
24.502.500
25.502.500
52.881.984
60.481.729
99.980.001

weird.numbers.js

var i = 0;
while (true) {

  // only numbers in length of mod 2
  if ((i+'').length % 2 !== 0) i *= 10;

  // get first and last part of number
  var a = (i+''),
      b = parseInt(a.substr(0, a.length / 2), 0),
      c = parseInt(a.substr(a.length / 2), 0);

  // print number if the parts sum with power of two is equal to number
  if (i === Math.pow(b + c, 2)) console.log(i);

  // iterate
  i++;
}