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A058121 Number of self-converse semigroups of order n with 3 idempotents. +0
2
2, 16, 112, 764, 5567 (list; graph; listen)
OFFSET

3,1
LINKS

Index entries for sequences related to semigroups

CROSSREFS

Column 3 of A058118.

Sequence in context: A059204 A009619 A012024 this_sequence A117627 A117628 A037564

Adjacent sequences: A058118 A058119 A058120 this_sequence A058122 A058123 A058124

KEYWORD

nonn,hard

AUTHOR

Christian G. Bower (bowerc(AT)usa.net), Nov 10 2000

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

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