Pattern 6

 #include<iostream.h> 
 int main()
 {
   int n = 5,k = 1;
   for(int i = 1; i <=n; i++)
   {
     for(int j = 1; j <= n; j++)
     {
       cout<<k++<<" ";
     }
     cout<<endl;
   }
   return 0;
 }

 class PatternProg
 {
   public static void main(String args[])
   {
     int n = 5;
     int k = 1;
     
     for(int i = 1; i <= n; i++)
     {
       for (int j = 1; j <= n; j++)
       {
         System.out.printf("%2d ",k);
         k++;
       }
       System.out.println();
     }
 }
 }

 using System;
 class PatternProg
 {
   public static void Main()
   {
     int n = 5;
     int k = 1;
 
     for (int i = 1; i <= n; i++)
     {
       for (int j = 1; j <= n; j++)
       {
         Console.Write("{0,2:D} ", k);
         k++;
       }
       Console.WriteLine();
     }
     Console.ReadKey(true);
   }
 }

 n = 5
 k = 1
 for x in range(1, n + 1):
  for y in range(1, n + 1):
     print("{:2d} ".format(k), end="")
     k += 1
  print()