A058150 - OEIS

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A058150

Triangle: Number of asymmetric commutative monoids of order n with k idempotents.

%I #6 Mar 30 2012 17:37:11

%S 1,1,1,0,3,1,0,6,6,1,0,10,24,13,2,0,32,87,87,36,5,0,157,350,486,347,

%T 128,18,0

%N Triangle: Number of asymmetric commutative monoids of order n with k idempotents.

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

%e 1; 1,1; 0,3,1; 0,6,6,1; 0,10,24,13,2; ...

%Y Row sums give A058134.

%K nonn,tabl,more

%O 1,5

%A _Christian G. Bower_, Nov 14 2000