def oi(): return int(input())
def os(): return input()
def mi(): return list(map(int, input().split()))

# import sys
# input = sys.stdin.readline

# import sys
# sys.setrecursionlimit(10**8)
# import pypyjit
# pypyjit.set_param('max_unroll_recursion=-1')





input_count = 0
T = oi()

kakuritu = [1/12, 2/12, 3/12, 1/12, 3/12, 2/12]
for _ in range(T):
    N = oi()
    dp = [0]*(N*6+10)
    for i in range(N-1, -1, -1):
        for j in range(1,7):
            dp[i] += kakuritu[j-1] * dp[i+j]
        dp[i] += 1
    print(dp[0])