%I #6 Mar 30 2012 17:37:12
%S 1,0,1,0,1,0,1,3,0,1,9,18,6,1,1,420,638,264,77,8,4,367590,469675,
%T 227168,57788,7712,580,18
%N Triangle: Number of quasigroups of order n with k idempotents.
%H <a href="/index/Qua#quasigroups">Index entries for sequences related to quasigroups</a>
%e 1; 0,1; 0,1,0; 1,3,0,1; 9,18,6,1,1; ...
%Y Row sums give A057991.
%K nonn,tabl,more
%O 0,8
%A _Christian G. Bower_, Nov 20 2000
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