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%I #24 Dec 05 2023 10:28:28
%S 1,6,720,120960,2264371200,48920701648896000,
%T 1570969121006520000000000000
%N Erroneous version of A036981.
%C Previous incorrect name was "Number of round-robin tournament schedules with 2*n participants."
%K dead
%O 1,2
%A _Alexander Karpov_, Jul 11 2017
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