MOD = 998244353

Q = int(input())
N = [int(input()) for _ in range(Q)]

M = max(N)
R = [0]*(M+1)
E = [0]*(M+1)
R[1], R[2] = 1, 1
E[1], E[2] = 1, 3
for i in range(3, M+1):
  R[i] = (R[i-1] + R[i-2]) % MOD
  E[i] = (E[i-1] + E[i-2]) % MOD

for n in N:
  print((5*R[n]**2 - E[n]**2) % MOD)