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A054367 Number of unlabeled asymmetric 6-ary cacti having n polygons. 0
1, 1, 0, 15, 110, 1095, 10326, 107056, 1149126, 12845166, 147817170 (list; graph; refs; listen; history; internal format)
OFFSET

0,4

LINKS

Miklos Bona, Michel Bousquet, Gilbert Labelle, 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: A060931 A107585 A205347 * A199225 A034184 A092646

Adjacent sequences:  A054364 A054365 A054366 * A054368 A054369 A054370

KEYWORD

nonn

AUTHOR

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

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Last modified February 17 14:50 EST 2012. Contains 206050 sequences.