title: Sum Series 12 32 52 2N 12 1
signature: function sumSeries1232522N121($n) {
test_code: <?php
  
  
  // SOLUTION CODE 
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE 
  // ============================================
  function validateSolution($actual, $expected){
      return serialize($actual) == serialize($expected);
  }
  
  function driver($n, $expected){
      try{
        if (validateSolution(PLACEHOLDER_FN_NAME($n), $expected)){
          return "PASSED";
        }
        return "FAILED";
      }
      catch (Exception $exception_obj) {
        return get_class($exception_obj);
      }
  }
  
  function main(){
      printf("TEST-0...%s\n",driver(
        84, 
        790244));
      
      printf("TEST-1...%s\n",driver(
        74, 
        540274));
      
      printf("TEST-2...%s\n",driver(
        91, 
        1004731));
      
      printf("TEST-3...%s\n",driver(
        34, 
        52394));
      
      printf("TEST-4...%s\n",driver(
        36, 
        62196));
      
      printf("TEST-5...%s\n",driver(
        28, 
        29260));
      
      printf("TEST-6...%s\n",driver(
        70, 
        457310));
      
      printf("TEST-7...%s\n",driver(
        7, 
        455));
      
      printf("TEST-8...%s\n",driver(
        24, 
        18424));
      
      printf("TEST-9...%s\n",driver(
        47, 
        138415));
      
  }
  
  main();
  ?>
source_py: def sum_series_12_32_52_2n_12_1(n):
      return int((((n * ((2 * n) - 1)) * ((2 * n) + 1)) / 3))
source_cpp: int sum_series_12_32_52_2n_12_1(int n) {
    return ( n * ( 2 * n - 1 ) * ( 2 * n + 1 ) ) / 3;
  }