Четни степени на 2

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Test
{
    class Program
    {
        static void Main(string[] args)
        {

            int n = int.Parse(Console.ReadLine());
            double num = 1;
            for (var i = 0; i <= n; i += 2)

            {

                Console.WriteLine(num);

                num = num * 2 * 2;

            }

        }
    }
}