Number Pattern in C# - 25

Question: Program to print the following Number Pattern?

01
02 04
03 06 09
04 08 12 16
05 10 15 20 25

Code Snippet:

1. using System;  
2. public class Pattern  
3. {  
4.     public static void Main()  
5.     {  
6.         int row, col, n, pr;  
7.         Console.Write("Enter the no. of row: ");  
8.         n = Convert.ToInt32(Console.ReadLine());  
9.   
10.         for(row = 1; row <= n; row++)  
11.         {  
12.             pr = 0;  
13.             for(col = 1; col <= row; col++)  
14.             {     
15.                 pr = row*col;  
16.       
17.                 Console.Write("{0:D2} ", pr); // convert 1 to 01
18.             }  
19.             Console.WriteLine();  
20.         }  
21.             Console.ReadLine();  
22.     }  
23. }  

Fig: Screenshot of output