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%I #6 Mar 30 2012 17:37:11
%S 1,6,31,160,947
%N Number of self-converse monoids of order n with 3 idempotents.
%H <a href="/index/Mo#monoids">Index entries for sequences related to monoids</a>
%Y Column 3 of A058144.
%K nonn,more
%O 3,2
%A _Christian G. Bower_, Nov 14 2000