#include<bits/stdc++.h>
using namespace std;
unsigned long long n,m,sum;
unsigned long long a[105]; 
int main(){
	int n;
	cin>>n;
	for(int i=1;i<=n;i++){
		cin>>a[i];
		int ans=1;
		if(a[i]%2==0){
			for(int j=2;j<=a[i];j=j+2){
				ans*=j;
			}
		}else{
			for(int j=1;j<=a[i];j=j+2){
				ans*=j;
			}
		}
		int sum=1;
		for(int j=1;j<=a[i];j++){
			sum*=j;
		}
		cout<<2*sum/ans<<endl;
	}
}