import java.util.*;
public class Main {
public static void main(String args[]) {
Scanner scn = new Scanner(System.in);
int t = scn.nextInt();
while (t > 0) {
int a = scn.nextInt();
System.out.println(nobsitr(a));
t–;
}
}
public static int nobsitr(int n) {
int zero[] = new int[n];
int one[] = new int[n];
zero[0] = 1;
one[0] = 1;
for (int i = 1; i < n; i++) {
zero[i] = zero[i - 1] + one[i - 1];
one[i] = zero[i - 1];
}
return one[n - 1] + zero[n - 1];
}
}