Codeforces 1353C. Board Moves Solution

 ///La ilaha illellahu muhammadur rasulullah

///******Bismillahir-Rahmanir-Rahim******///

///Abul Hasnat  Tonmoy

///Department of CSE,23rd batch

///Islamic University,Bangladesh

#include <bits/stdc++.h>

using namespace std;

int main()

{

    int t;

    cin>>t;

    while(t--)

    {

        long long v,n;

        cin>>v;

        n=v/2;

        cout<<((n*(n+1)*(2*n+1))/6)*8<<endl;

    }

}