Diamond Shaped Array

Create a function that returns an array that expands by 1 from 1 to the value of the input, and then reduces back to 1. Items in the lists will be the same as the length of the lists.

Examples

diamond_arrays(1) ➞ [[1]]

diamond_arrays(2) ➞ [[1], [2, 2], [1]]

diamond_arrays(5) ➞ [[1], [2, 2], [3, 3, 3], [4, 4, 4, 4], [5, 5, 5, 5, 5], [4, 4, 4, 4], [3, 3, 3], [2, 2], [1]]

Notes

N/A