Search: id:A058136
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%I A058136
%S A058136 1,2,4,16,91,833,11771
%N A058136 Number of asymmetric monoids (semigroups with identity) of order n, considered 
               to be equivalent when they are isomorphic or anti-isomorphic (by 
               reversal of the operator).
%H A058136 <a href="Sindx_Mo.html#monoids">Index entries for sequences related to 
               monoids</a>
%Y A058136 a(n)=(A058130(n)+A058135(n))/2.
%Y A058136 Sequence in context: A000090 A013115 A007171 this_sequence A156335 A026089 
               A052835
%Y A058136 Adjacent sequences: A058133 A058134 A058135 this_sequence A058137 A058138 
               A058139
%K A058136 nonn,more
%O A058136 1,2
%A A058136 Christian G. Bower (bowerc(AT)usa.net), Nov 13 2000

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