Program to print number pattern

We have to print a pattern where in middle column contains only 1, right side columns contain constant digit which is greater than 1 and left side columns contains constant digit which is greater than 1. Every row should look like a Palindrome.

Examples : 

Input : 3
Output :
 1
 2 1 2
 1

Input : 5
Output :
 1
 2 1 2
3 2 1 2 3
 2 1 2
 1

Below is the implementation to print the following pattern :

Output : 

 1
 212
32123
 212
 1

Time Complexity: O(n²), where n represents the given input.
Auxiliary Space: O(1), no extra space is required, so it is a constant.