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A058104 Number of asymmetric semigroups of order n. 2
1, 1, 3, 15, 112, 1221, 19684, 1458882 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

LINKS

Index entries for sequences related to semigroups

CROSSREFS

Cf. A027851, A058113. a(n) = A079175(n, A027423(n)).

Sequence in context: A130168 A089945 A135083 * A056053 A059849 A123853

Adjacent sequences:  A058101 A058102 A058103 * A058105 A058106 A058107

KEYWORD

nonn,hard

AUTHOR

Christian G. Bower (bowerc(AT)usa.net), Nov 09 2000. Updated Feb 19 2001.

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Last modified February 16 10:43 EST 2012. Contains 205904 sequences.