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Euler's Graeco-Roman Squares Conjecture

Euler conjectured that there do not exist Graeco-Roman Squares (now known as Euler Squares) of order $n=4k+2$ for $k=1$, 2, .... Such squares were found to exist in 1959, refuting the Conjecture.

See also Euler Square, Latin Square

© 1996-9 Eric W. Weisstein