Frénicle standard form

A magic square is in Frénicle standard form, named for Bernard Frénicle de Bessy, if the following two conditions apply: 1. * the element at position [1,1] (top left corner) is the smallest of the four corner elements; and 2. * the element at position [1,2] (top edge, second from left) is smaller than the element in [2,1]. Frénicle's published book of 1693 described all the 880 essentially different order-4 magic squares.

Frénicle standard form

A magic square is in Frénicle standard form, named for Bernard Frénicle de Bessy, if the following two conditions apply: 1. * the element at position [1,1] (top left corner) is the smallest of the four corner elements; and 2. * the element at position [1,2] (top edge, second from left) is smaller than the element in [2,1]. Frénicle's published book of 1693 described all the 880 essentially different order-4 magic squares.