Write a Python program to print the following number pattern using nested for loop. 5 10 15 20 25 4 8 12 16 3 6 9 2 4 1

Sure! Here's a simple Python program that prints the given number pattern using nested `for` loops:

# Number pattern starts from 1 and increments by 5 for each row
pattern = [i * 5 for i in range(1, 6)]

# Loop through rows
for i in pattern:
    # Loop through columns (decrementing by 1 for each row)
    for j in range(i, 0, -1):
        print(j, end=" ")
    # Move to the next line after printing a row
    print()

This code first defines the pattern as a list of numbers starting from 5 and increasing by 5 for each step down. Then it uses two nested `for` loops: one iterates over the rows, and the inner one prints the numbers decreasing from the current row value to 1. The `end=" "` argument in `print()` is used to separate the numbers with spaces instead of newlines, and `print()` without arguments moves to the next line after each row.

Here's the output when you run this program:

5 10 15 20 25 
4 8 12 16 
3 6 9 
2 4 
1