CodeForces_Solution

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define fio ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0)
#define endl '\n'
#define mod 1000000007
int min(int a, int b) {
 if (a < b)
 return a;
 else
 return b;
}
bool compare(int a, int b) {
 return a > b;
}
int32_t main() {
 fio;
 int t;
 cin >> t;
 while (t--) {
 int n;
 cin >> n;
 vector<int>v;
 v.push_back(0);
 for (int i = 3; i <= n; i += 2) {
 v.push_back(2 * i + (i - 2) * 2);
 }
 int cnt = 0;
 for (int i = 0; i < v.size(); i++) {
 cnt += v[i] * i;
 }
 cout << cnt << endl;
 }
}