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%I #3 Mar 31 2012 10:23:06
%S 1,6,20,128,1710,81576,7910127
%N Number of cyclic whist (or bridge) tournaments with n tables of 4 players.
%D Ian Anderson, Combinatorial designs and tournaments, Clarendon Press, Oxford, 1997, page 209
%H Bill Butler, <a href="http://www.durangobill.com/BridgeCyclicSolutions.html">Cyclic Bridge Tournaments</a>
%K nonn
%O 1,2
%A _Robert FERREOL_, Feb 21 2006, corrected Jan 01 2007
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