To compile and play with the sum of odds in C++: `g++ aoc_01-sumofofodd.cpp && ./a.out` or `clang++ -std=c++11 -stdlib=libc++ -g aoc_01-sumofofodd.cpp && ./a.out`

aoc_01-sumofofodd.cpp

#include <iostream>
#include <string>
#include <vector>
#include <math.h>

using std::cout;
using std::string;
using std::vector;


vector<int> SumOfOdd(int n) {
  vector<int> v;

  double sumOfOdd = .0;
  for (int i=0; i<=n; i++) {
    sumOfOdd = pow(1.0 + (double)i, 2.0);
    v.push_back((int)sumOfOdd);
  }
  
  return v;
}


void PrintBoard(const vector<int> board) {
  for (int i = 0; i < board.size(); i++) {
    cout << board[i];
    cout << "\n";
  }
  cout << "\n";
}


int main() {
  auto board = SumOfOdd(8);
  PrintBoard(board);
}