A058114 Number of asymmetric semigroups of order n with 1 idempotent.

1, 2, 3, 11, 112, 4398, 1181185

Offset

1,2

Links

Table of n, a(n) for n=1..7.

Index entries for sequences related to semigroups

Crossrefs

Column 1 of A058113.

Sequence in context: A079853 A358602 A050721 * A042337 A061482 A177854

Adjacent sequences: A058111 A058112 A058113 * A058115 A058116 A058117

Keyword

nonn,hard

Author

Christian G. Bower, Nov 09 2000

Extensions

Updated Feb 19 2001

Status

approved