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%I #5 Aug 15 2015 09:56:16
%S 1,2,6,576,80640,505958400,30739709952000,55019078005712486400
%N Number of even Latin squares of order n.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Alon-TarsiConjecture.html">Alon-Tarsi Paradox</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/LatinSquare.html">Latin Square</a>
%Y Cf. A002860, A065711, A114629, A114630.
%K nonn,hard,more
%O 1,2
%A _Eric W. Weisstein_, Dec 18 2005