C++ :

#include<iostream>
#include<algorithm>
using namespace std;
int n,a[200],s;
int main()
{
	cin>>n;s=3;a[1]=1;
	for (int i=2;i<=n;i++){
		a[i]=a[i-1]+s;
		s+=3;
	}
	for (int i=1;i<=n;i++)
	cout<<a[i]<<" ";
	return 0;
}