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A054363 Number of unlabeled 5-ary cacti having n polygons. 0
1, 1, 5, 15, 85, 510, 4051, 33130, 291925, 2661255, 25059670, 241724380, 2379912355 (list; graph; refs; listen; history; internal format)
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: A165470 A165625 A058820 * A184438 A134135 A121869

Adjacent sequences:  A054360 A054361 A054362 * A054364 A054365 A054366

KEYWORD

nonn

AUTHOR

Simon Plouffe (simon.plouffe(AT)gmail.com)

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Last modified February 13 17:27 EST 2012. Contains 205523 sequences.