A058145 - OEIS

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A058145

Number of self-converse monoids of order n with 2 idempotents.

1, 3, 9, 28, 131, 1081 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`2,2`
	LINKS	`Table of n, a(n) for n=2..7.` `Index entries for sequences related to monoids`
	CROSSREFS	`Column 2 of A058144.` `Sequence in context: A121656 A148937 A047137 * A218915 A161590 A192245` `Adjacent sequences: A058142 A058143 A058144 * A058146 A058147 A058148`
	KEYWORD	`nonn,more`
	AUTHOR	`Christian G. Bower, Nov 14 2000`
	STATUS	`approved`

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Last modified June 20 00:15 EDT 2013. Contains 226416 sequences.