import sys
input = lambda :sys.stdin.readline().rstrip()
ii = lambda: int(input())
mi = lambda: map(int, input().split())
ms = lambda: map(str, input().split())
mf = lambda: map(float, input().split())
li = lambda: list(mi())

Q = ii()
R = [1, 1]
E = [1, 3]
for i in range(1<<18):
    R.append((R[-1] + R[-2])%998244353)
    E.append((E[-1] + E[-2])%998244353)

for i in range(Q):
    N = ii()
    print((5 * R[N-1] * R[N-1] - E[N-1] * E[N-1])%998244353)