from sys import *
setrecursionlimit(100000000)
f = {0: 1}
def fact(n):
    global f
    if not n in f:
        f[n] = n * fact(n - 1)
    return f[n]
def c(m, n):
    return fact(n) // (fact(n - m)*fact(m))
def light(n):
    ans = 1
    for i in range(1, n):
        ans += c(i, n)
    return ans
for _ in range(int(input())):
    print(light(int(input())))