A054363 - OEIS

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A054363

Number of unlabeled 5-ary cacti having n polygons.

1, 1, 5, 15, 85, 510, 4051, 33130, 291925, 2661255, 25059670, 241724380, 2379912355 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,3`
	LINKS	`Table of n, a(n) for n=0..12.` `Miklos Bona, Michel Bousquet, Gilbert Labelle and Pierre Leroux, Enumeration of m-ary cacti, Advances in Applied Mathematics, 24 (2000), 22-56 (pdf, dvi).` `Index entries for sequences related to cacti`
	CROSSREFS	`Sequence in context: A165470 A165625 A058820 * A211944 A184438 A134135` `Adjacent sequences: A054360 A054361 A054362 * A054364 A054365 A054366`
	KEYWORD	`nonn`
	AUTHOR	`Simon Plouffe`
	STATUS	`approved`

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Last modified May 19 10:59 EDT 2013. Contains 225429 sequences.