Pasgays Triangle

using System;

namespace MainProgram
{
    class PTriangleCalc
    {
        static int GetPTInt(string prompt)
        {
            int result = 0;

            while (result < 1)
            {
                try
                {
                    Console.WriteLine(prompt);
                    result = int.Parse(Console.ReadLine());
                }
                catch
                {
                    Console.WriteLine("Invalid Input, try again.");
                    continue;
                }
            }
            return result;
        }

        static void Main()
        {
            Console.WriteLine("---Pascal's triangle row displayer---");
            int n = GetPTInt("Please enter a row that you wish to display: ");
            Console.WriteLine("- row " + n + "-");

            int[,] PTriangle = new int[n,n];

            for (int i=0; i<n; i++)
            {
                for (int j=0; j!=i; j++)
                {
                    if (j == 0 || j == i)
                    {
                        PTriangle[i, j] = 1;
                    }
                    else
                    {
                        PTriangle[i, j] = PTriangle[i - 1, j] + PTriangle[i - 1, j - 1];
                    }
                }
            }


            int[] PTRow = new int[n];

            for (int i=0; i<n; i++)
            {
                PTRow[i] = PTriangle[n - 1, i];
            }

            for (int i=0; i<n; i++)
            {
                Console.WriteLine(PTRow[i]);
            }
        }
    }
}