Python Program for 1-212-32123 Numeric Pyramid Pattern

This python program generates 1-212-32123-4321234 numeric pyramid pattern up to n number of lines.

In this program we first read number of rows from user and set outer loop i for number of lines. Generating 1-212-32123 pattern requires setup for space pattern, decreasing number pattern & increasing number pattern which are set by inner loop j. See program below:

Python Source Code: 1-212-32123 Pattern

# Pattern 1-212-32123...

# Reading number of rows
row = int(input('Enter how many lines? '))

# Generating pattern
for i in range(1,row+1):
    
    # for space
    for j in range(1, row+1-i):
        print(' ', end='')
    
    # for decreasing pattern
    for j in range(i,0,-1):
        print(j, end='')
    
    # for increasing pattern 
    for j in range(2,i+1):
        print(j, end='')
    
    # Moving to next line
    print()

Python Output: 1-212-32123 Pattern

Enter how many lines? 9
        1
       212
      32123
     4321234
    543212345
   65432123456
  7654321234567
 876543212345678
98765432123456789