Triangle Quest 2

You are given a positive integer N.
Your task is to print a palindromic triangle of size N.

For example, a palindromic triangle of size is:

1
121
12321
1234321
123454321

Find a string

In this challenge, the user enters a string and a substring. You have to print the number of times that the substring occurs in the given string. String traversal will take place from left to right, not from right to left.