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%I #6 Mar 30 2012 17:37:12
%S 1,1,1,4,24,746,567207
%N Number of quasigroups of order n, considered to be equivalent when they are isomorphic or anti-isomorphic (by reversal of the operator).
%H <a href="/index/Qua#quasigroups">Index entries for sequences related to quasigroups</a>
%Y a(n)=(A057991(n)+A057993)/2.
%K nonn,more
%O 0,4
%A _Christian G. Bower_, Nov 20 2000
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