Pattern 400

 #include<iostream.h>
 #include<math.h>

 int main()
 {
 int size=4;
 int i,j,k;
 int p=1;
 
 for(i=size;i>=-size;i--)
 {
  for(j=1;j<=abs(i);j++)
  {
   cout<<" ";
  }
 
 /*initialize p with 1 (i>=0) or j */
 
 p=(i>=0)?1:j;

 for(k=size;k>=abs(i);k--)
 {
   cout<<p<<" ";
   p++;
 }
  cout<<endl;
 }
  return 0;
 }

class PatternProg
{
    public static void main(String args[])
    {
        int size = 4;
        int p = 1;
        int i,j;

        for (i = size; i >= -size; i--)
        {
            for (j = 1; j <= Math.abs(i); j++)
            {
                System.out.print(" ");
            }

            /*initialize p with 1 (i>=0) or j */

            p=(i>=0)?1:j;

            for (int k = size; k >= Math.abs(i); k--)
            {
                System.out.print(p+" ");
                p++;
            }

            System.out.println();
        }
    }
}

using System;

class PatternProg
{
  public static void Main()
  {
    int size = 4;
    int p;
    int i, j, k;

    for (i = size; i >= -size; i--)
    {
      for (j = 1; j <= Math.Abs(i); j++)
      {
        Console.Write(" ");
      }


      /*initialize p with 1 (i>=0) or j */

      p = (i >= 0) ? 1 : j;

      for (k = size; k >= Math.Abs(i); k--)
      {
        Console.Write(p + " ");
        p++;
      }

      Console.WriteLine();
    }
    Console.ReadKey(true);
  }
}

size = 4
p = 1
for x in range(size, -(size + 1), -1):
    for y in range(1, abs(x) + 1):
        print(" ", end="")

    if (x >= 0):
        p = 1
    else:
        p = y + 1

    for z in range(size, abs(x) - 1, -1):
        print(str(p) + " ", end="")
        p += 1
    print()