Print Number and Star in Triangular format using C#

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

            int i, j,m,k=6;
            Console.WriteLine();
            for (i = 1; i <= 5; i++)
            {
                for (m = 1; m <= k; m++)
                {
                    Console.Write("   ");
                }
                for (j = 1; j <= i; j++)
                {
                    Console.Write("  " + "*");
                }
                for (j = i-1; j >= 1; j--)
                {
                    Console.Write("  " + "*");
                }
                k--;
                Console.WriteLine();
            }
            Console.Read();
        }
    }
}