#include<bits/stdc++.h>
using namespace std;
#define ll long long
int main()
{
    int N;
    scanf("%d", &N);
    while(N--)
    {
        ll n;
        scanf("%lld", &n);
        ll x = (1 + n) * n / 2;
        printf("%lld\n", (x - n / 2) * (x - n / 2));
    }
    return 0;
}
 

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