A method for constructing magic squares of odd order, also called the Siamese method.
de la Loubere's Method
See also
Magic SquareExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "de la Loubere's Method." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/delaLouberesMethod.html