id:A052394 - OEIS Search Results

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Number of unlabeled 4-ary cacti having n polygons

+0
1

1, 1, 4, 10, 44, 197, 1228, 7692, 52828, 373636, 2735952, 20506258, 156922676 (list; graph; listen)

	OFFSET	`0,3`
	LINKS	`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: A149225 A122648 A058819 this_sequence A066229 A149226 A155386` `Adjacent sequences: A052391 A052392 A052393 this_sequence A052395 A052396 A052397`
	KEYWORD	`nonn`
	AUTHOR	`Simon Plouffe (simon.plouffe(AT)gmail.com)`

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.