The unique magic square of order three. The Lo Shu is an associative magic square, but not a panmagic square.
Lo Shu
See also
Associative Magic Square, Magic Square, Panmagic SquareExplore with Wolfram|Alpha
References
Gardner, M. The Sixth Book of Mathematical Games from Scientific American. Chicago, IL: University of Chicago Press, pp. 19 and 24, 1984.Hunter, J. A. H. and Madachy, J. S. Mathematical Diversions. New York: Dover, pp. 23-24, 1975.Kraitchik, M. Mathematical Recreations. New York: W. W. Norton, pp. 146-147, 1942.Wells, D. The Penguin Dictionary of Curious and Interesting Numbers. Middlesex, England: Penguin Books, pp. 75-76, 1986.Referenced on Wolfram|Alpha
Lo ShuCite this as:
Weisstein, Eric W. "Lo Shu." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/LoShu.html