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Search: id:A052394
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A052394 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

Adjacent sequences: A052391 A052392 A052393 this_sequence A052395 A052396 A052397

Sequence in context: A114918 A122648 A058819 this_sequence A066229 A115327 A099606

KEYWORD

nonn

AUTHOR

Simon Plouffe (plouffe(AT)math.uqam.ca)

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Last modified October 11 13:47 EDT 2008. Contains 144830 sequences.


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