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%I #5 Mar 30 2012 17:37:11
%S 2,10,47,283,2139
%N Monoids of order n with 3 idempotents, considered to be equivalent when they are isomorphic or anti-isomorphic (by reversal of the operator).
%H <a href="/index/Mo#monoids">Index entries for sequences related to monoids</a>
%Y Column 3 of A058147.
%K nonn,more
%O 3,1
%A _Christian G. Bower_, Nov 14 2000