id:A058121 - OEIS Search Results

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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 September 5 19:27 EDT 2008. Contains 143485 sequences.