A058140 Triangle read by rows: number of asymmetric monoids of order n with k idempotents.

1, 1, 1, 0, 3, 1, 0, 6, 10, 3, 0, 14, 47, 55, 12, 0, 124, 267, 490, 395, 68, 0, 4510, 2230, 4460, 5971, 3324, 502, 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;
0,6,10,3;
0,14,47,55,12;
...

Crossrefs

Row sums give A058130. Main diagonal: A058115(n-1). Column 2: A058141.

Sequence in context: A137651 A248826 A058152 * A074678 A363976 A201586

Adjacent sequences: A058137 A058138 A058139 * A058141 A058142 A058143

Keyword

nonn,tabl,more

Author

Christian G. Bower, Nov 14 2000

Status

approved