Search: id:A036981
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%I A036981
%S A036981 1,6,720,31449600,444733651353600
%N A036981 (2n+1) X (2n+1) symmetric matrices each of whose rows is a permutation 
               of 1..(2n+1).
%C A036981 Number of different schedules for 2n+2 teams. - Andres Cardemil (andrescarde(AT)yahoo.com), 
               Nov 28, 2001
%H A036981 <a href="Sindx_To.html#tournament">Index entries for sequences related 
               to tournaments</a>
%Y A036981 Cf. A035481, A036980, A000474, A064120, A065594. A000438 equals A036981 
               / (2n+1)!.
%Y A036981 Sequence in context: A002204 A052295 A080369 this_sequence A130688 A088217 
               A020542
%Y A036981 Adjacent sequences: A036978 A036979 A036980 this_sequence A036982 A036983 
               A036984
%K A036981 nonn
%O A036981 0,2
%A A036981 Joshua Zucker and Joe Keane (joshua.zucker(AT)stanfordalumni.org)

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