The are a lot of algorithms to construct magic squares of odd order (n=3,5,7,…). These are the simpliest magic squares, but nevertheless most of these algorithms will construct one and only one single magic square.
You will find more methods to create magic squares of odd order in section pandiagonal squares.
|Al-Buni (Method 1)|
|Al-Buni (Method 2)|
|Rallier des Ourmes|
All algorithms are described in detail in my PDF book. (chapter: Concentric Magic Squares)