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%I #7 Jul 10 2011 18:42:30
%S 1,2,10,17780
%N Number of isomorphism classes of anti-associative closed binary operations on a set of order n.
%C A079177(n)+A079180(n)=A001329(n).
%C Each a(n) is equal to the sum of the elements in row n of A079181.
%H C. van den Bosch, <a href="http://cosmos.ucc.ie/~cjvdb1/html/binops.shtml">Closed binary operations on small sets</a>
%H <a href="/index/Se#semigroups">Index entries for sequences related to semigroups</a>
%H <a href="/index/Gre#groupoids">Index entries for sequences related to groupoids</a>
%Y Cf. A079177, A079179, A079181.
%K nonn
%O 1,2
%A Christian van den Bosch (cjb(AT)cjb.ie), Jan 03 2003
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