Introduction - If you have any usage issues, please Google them yourself
Print a number-triangle
Write a program that asks a user to input an integer number that is greater than 0 and
smaller than 10, and then outputs a number-triangle. For example, if the input is 2, the
number-diamond looks like this:
1
121
If the input is 5, the number-diamond looks like this:
1
1
121
12321
1234321
123454321