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Monoids of order n with 2 idempotents.
1

%I #5 Mar 30 2012 17:37:11

%S 1,3,9,32,219,5585

%N Monoids of order n with 2 idempotents.

%H <a href="/index/Mo#monoids">Index entries for sequences related to monoids</a>

%Y Column 2 of A058137.

%K nonn,more

%O 2,2

%A _Christian G. Bower_, Nov 14 2000