#include <bits/stdc++.h>
using namespace std;


int Digui(int i) {
    if (i==0) return 1;
    if (i==1) return 1;
    return Digui(i-1)+2*i-1+2*i-3;
}
int main() {
    int N;
    cin >> N;
    while (N--) {
        int x;
        cin >> x;
        cout << Digui(x) << endl;
    }
}