A058150 Triangle: Number of asymmetric commutative monoids of order n with k idempotents.

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, 128, 18, 0

Offset

1,5

Links

Table of n, a(n) for n=1..29.

Index entries for sequences related to monoids

Example

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

Crossrefs

Row sums give A058134.

Sequence in context: A256595 A004590 A206294 * A058151 A257673 A137651

Adjacent sequences: A058147 A058148 A058149 * A058151 A058152 A058153

Keyword

nonn,tabl,more

Author

Christian G. Bower, Nov 14 2000

Status

approved