#include<iostream>
#include<algorithm>
#include<map>
#include<cmath>
#include<vector>
#include<iomanip>
#include <numeric>
#include<iomanip>
#include <bitset>
#define OmarNasr {ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);}
using namespace std;

int main()
{
    OmarNasr;
    int t,n;
    cin >> t;
    while (t--) {
        cin >> n;
        long long sum = 0, c = n;
        n--;
        sum = ((n * (n + 1)) / 2) * (n+1) + (c * (c + 1)) / 2;
      
        cout << sum << "\n";
    }
    return 0;
}