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A058114 Number of asymmetric semigroups of order n with 1 idempotent. 1
1, 2, 3, 11, 112, 4398, 1181185 (list; graph; refs; listen; history; text; internal format)
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: A300898 A079853 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

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Last modified December 7 06:09 EST 2021. Contains 349567 sequences. (Running on oeis4.)