using System;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter number of sequencies to be generated:");

        int rank;

        var text = Console.ReadLine();

        if (!int.TryParse(text, out rank) || rank < 3)

        {

            rank = 35;

            Console.WriteLine("Number is <3 using default = 35");

        }

​

        var fib = GetFibonacci(rank);

        var indexWidth = fib.Length.ToString().Length;

        var valueWidth = Math.Max(9, fib[fib.Length - 1].ToString().Length);

        Console.WriteLine("┏{0}┳{1}┓", new string ('━', indexWidth), new string ('━', valueWidth));

        Console.WriteLine("┃{0}┃{1}┃", "n".PadLeft(indexWidth, ' '), "fibonnaci".ToString().PadLeft(valueWidth, ' '));

        var rowSeparator = string.Format("┣{0}╋{1}┫", new string ('━', indexWidth), new string ('━', valueWidth));

        for (var i = 0; i < fib.Length; i++)

        {

            Console.WriteLine(rowSeparator);

            Console.WriteLine("┃{0}┃{1}┃", i.ToString().PadLeft(indexWidth, ' '), fib[i].ToString().PadLeft(valueWidth, ' '));

        }

​

        Console.WriteLine("┗{0}┻{1}┛", new string ('━', indexWidth), new string ('━', valueWidth));

    }

​

    public static int[] GetFibonacci(int length)

    {

        var result = new int[length + 1];

        result[0] = 1;

        result[1] = 1;

        for (var i = 2; i <= length; i++)

        {

            result[i] = result[i - 2] + result[i - 1];

        }

​

        return result;

    }

}