import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;

public class Main {
	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int t = Integer.parseInt(br.readLine());
		int mod = 998244353;
		PrintWriter pw = new PrintWriter(System.out);
		for (int z = 0; z < t; z++) {
			long n = Integer.parseInt(br.readLine());

			if (n == 1) {
				pw.println(1);
				continue;
			}

			long m = n * (n - 1) / 2;
			long m2 = power(2, m, mod);
			long total = n * m2 % mod;

			long v1 = 3 * modinv(4, mod) % mod;
			long v2 = power(v1, n - 2, mod);
			long v3 = v2 * modinv(2, mod) % mod;
			long v4 = v3 * (n - 1) % mod;
			long v5 = v4 * m2 % mod;

			long ans = (total - v5 + mod) % mod;
			pw.println(ans);
		}
		pw.flush();
		br.close();
	}

	static long power(long x, long n, int m) {
		if (n == 0) {
			return 1;
		}
		long val = power(x, n / 2, m);
		val = val * val % m;
		if (n % 2 == 1) {
			x %= m;
			val = val * x % m;
		}
		return val;
	}

	static long modinv(long a, int m) {
		long b = m;
		long u = 1;
		long v = 0;
		long tmp = 0;

		while (b > 0) {
			long t = a / b;
			a -= t * b;
			tmp = a;
			a = b;
			b = tmp;

			u -= t * v;
			tmp = u;
			u = v;
			v = tmp;
		}

		u %= m;
		if (u < 0) u += m;
		return u;
	}
}