The Nine Halls Diagram represents one of these known as "Lo Shu," which is the unique one of order three.
J.H. Conway developed the "LUX" method to construct these objects, and in the 17th century Simon de la Loubere introduced to the West a method for constructing them after returning from Siam. The Nine Halls Diagram represents one of these known as "Lo Shu," which is the unique one of order three. All 880 ones of order four were enumerated by Bernard Frenicle de Bessy, and Benjamin Franklin notably created ones of orders 8 and 16 with special properties. Catalan artist Josep Subirachs included one of these objects on the façade of the (*) Sagrada Familia, while a more famous one is depicted next to an hourglass and above an angel in a 1514 engraving; that work is Albrecht Dürer's Melancholia I. For 10 points, name these mathematical objects in which n2 numbers are arranged such that the n numbers in all the rows, columns, and main diagonals have the same sum.
J.H. Conway developed the "LUX" method to construct these objects, and in the 17th century Simon de la Loubere introduced to the West a method for constructing them after returning from Siam.
magic squares