#!/usr/bin/ python3.8
# %%
import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

dp = [0,
     1.0000000000000000,
     1.0833333333333333,
     1.2569444444444444,
     1.5353009259259260,
     1.6915991512345676,
     2.0513639724794235] + [0] * 10

P = [0] * 7
for n in range(1, 6):
    x = dp[n + 1] - 1
    for i in range(1, 7):
        x -= P[i] * dp[n + 1 - i]
    P[n] = x
P[6] = 1 - sum(P)

U = 10 ** 6 + 100
dp = [0] * U
for n in range(1, U):
    x = 1
    for i in range(1, 7):
        x += P[i] * dp[n - i]
    dp[n] = x

Q, *N = map(int, read().split())
answers = (dp[n] for n in N)
print('\n'.join(map(str, answers)))