Project Euler Problem 28

by michiganfootball20

HTML

<html>
<head>
<title>Online PHP Script Execution</title>
</head>
<body>
<?php
  
  $s_size = 3;
  $counter = 1;
  $sum = 0;
  while($s_size < 1002){
    
    for($i = 1; $i <= (2*$s_size+(2*($s_size-2))); $i++){
      $counter++;
      if($i % ($s_size-1) === 0) $sum += $counter;
    }
    
    $s_size += 2;
  }
  $sum++;
  
  echo $sum;
  
   
?>
</body>
</html>