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

int main() {
	int n,num;
	cin >> num;
	vector<long long> arr(1005);
	arr[0] = 1,arr[1]=1;
	for(int i=2;i<1005;i++)
		arr[i] = arr[i-1]+((i-1)*4);
	
	while(num--){
		cin >> n;
		cout << arr[n] << endl;
	}
}