Learn how to construct a magic square of odd size with Math Dad.
Magic squares of even order:
http://www.dr-mikes-math-games-for-kids.com/even-order-magic-square-recipe.html
https://www.geeksforgeeks.org/magic-square-even-order/
Second Nature by Audionautix is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
Artist: http://audionautix.com/