Antimagic square
Mathematical object / From Wikipedia, the free encyclopedia
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An antimagic square of order n is an arrangement of the numbers 1 to n2 in a square, such that the sums of the n rows, the n columns and the two diagonals form a sequence of 2n + 2 consecutive integers. The smallest antimagic squares have order 4.[1] Antimagic squares contrast with magic squares, where each row, column, and diagonal sum must have the same value.[2]