m = 10 ** 6
dp = [0] * (m + 1)
dp[0] = 1
P = [0] * 6
P[0] = 1 / 12
P[1] = 1 / 6
P[2] = 1 / 4
P[3] = 1 / 12
P[4] = 1 / 4
P[5] = 1 - sum(P)
for i in range(m):
    for j in range(1, 7):
        if i + j > m:
            break
        dp[i + j] += dp[i] * P[j - 1]
    if i >= 1:
        dp[i] += dp[i - 1]

T = int(input())
for _ in range(T):
    n = int(input())
    print(dp[n - 1])