Magic square

In recreational mathematics, a magic square is a ${\displaystyle n\times n}$ square grid (where ${\displaystyle n}$ is the number of cells on each side) filled with distinct positive integers in the range ${\displaystyle 1,2,...,n^{2}}$ such that each cell contains a different integer and the sum of the integers in each row, column and diagonal is equal. The sum is called the magic constant or magic sum of the magic square. A square grid with ${\displaystyle n}$ cells on each side is said to have order n.

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