Display sum of series.cpp

//Program to display sum of series 1+3+5+7+... .

#include <iostream>
using namespace std;
int main6() {
	int n, sum = 0;
	cout << "Enter the value of n: ";
	cin >> n;
	for (int i = 1;i <= n;i=i+2)
		sum += i;
	cout << "Sum is : " << sum << endl;
	system("pause");
	return 0;
}