Search: id:A079179
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%I A079179
%S A079179 1,2,52,421560
%N A079179 Number of anti-associative closed binary operations on a set of order 
               n.
%C A079179 A079176(n)+A079179(n)=A002489(n).
%C A079179 Each a(n) is equal to the sum of the products of each element in row 
               n of A079181 and the corresponding element of A079210.
%H A079179 C. van den Bosch, <a href="http://cosmos.ucc.ie/~cjvdb1/html/binops.shtml">
               Closed binary operations on small sets</a>
%H A079179 <a href="Sindx_Gre.html#groupoids">Index entries for sequences related 
               to groupoids</a>
%Y A079179 Cf. A079176, A079180, A079181.
%Y A079179 Sequence in context: A121293 A057106 A080973 this_sequence A000654 A061306 
               A139841
%Y A079179 Adjacent sequences: A079176 A079177 A079178 this_sequence A079180 A079181 
               A079182
%K A079179 nonn
%O A079179 1,2
%A A079179 Christian van den Bosch (cjb(AT)cjb.ie), Jan 03 2003

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