#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  int t;
  cin >> t;
  unsigned long long dp[1000000];
  unsigned long long ans = 0;
  for (long long i = 1; i <= 500000; i += 2) {
    long long val = (i * i - (i - 2) * (i - 2)) * (i / 2);
    ans = ans + val;
    dp[i] = ans;
  }
  while (t--) {
    long n;
    cin >> n;
    cout << dp[n] << "\n";
  }
  return 0;
}
