#include <stdio.h>
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using mint = modint998244353;
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf32 1000000001
#define Inf64 1000000000000000001
long long g(long long n){
	return n * (n+1) / 2;
}
int main(){
	
	int _t;
	cin>>_t;
	
	rep(_,_t){
		long long n;
		cin>>n;
		long long x = 0;
		long long y = n-x;
		
		cout<<g(n) + g(x) + g(y) + min(x,y)<<endl;
	}
	
	return 0;
}