Pascal Triangle

using System;
using System.Linq;
using System.Collections.Generic;

namespace _02_Pascal_Triangle
{
    class Program
    {
        static void Main()
        {
            int rowsCount = int.Parse(Console.ReadLine());

            var previousRow = new List<int>();

            for (int i = 1; i <= rowsCount; i++)
            {
                var rows = new int[i];

                rows[0] = 1;

                if (i > 1)
                {
                    rows[^1] = 1;
                }

                if (i == 3)
                {
                    rows[1] = 2;
                }

                if (i > 3)
                {
                    int counter = 0;

                    for (int k = 1; k < i - 1; k++)
                    {
                        rows[k] = previousRow[counter] + previousRow[k];
                        counter++;
                    }

                    counter = 0;
                }

                previousRow.Clear();

                for (int j = 0; j < rows.Length; j++)
                {
                    previousRow.Add(rows[j]);
                }

                foreach (var number in rows)
                {
                    Console.Write(number + " ");
                }
                Console.WriteLine();
            }
        }
    }
}