I need help writing a Python program that creates a pyramid of numbers with the left side of the pyramid counting down and the right side counting up. Ask the user for the height of the pyramid and use their input to construct using either a FOR loop or a WHILE loop.

Ask the user for a number - You can assume the input is a valid integer - However, if it's 0 or less, ask for the height again - Generate a pyramid made of numbers based on user input 

it should look like this:

1

2. 2

3. 3. 3