Python Program:

Example:

    *
  *   *
*   *   *

rows=int(input("Enter number of rows : "))
for i in range(rows,0,-1):
  for j in range(1,2*rows-i+1):
    if(j>=i and (j+i)%2==0):
      print("* ", end="")
    else:
      print("  ", end="")
  print("")

Output:

Enter number of rows: 4

      *
    *   *
  *   *   *
*   *   *   *

Main Logic :

for i in range(rows,0,-1): #rows : number of rows to print
  for j in range(1,2*rows-i+1):
    if(j>=i and (j+i)%2==0):
      print("* ", end="")
    else:
      print("  ", end="")
  print("")

You can print any thing in this pattern, just replace your value with *