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A007860 Maximal matchings in rooted plane trees on n nodes. +0
1
0, 1, 4, 12, 44, 175, 718, 3052, 13308, 59139, 266974, 1220879, 5643562, 26327769, 123793450 (list; graph; listen)
OFFSET

1,3

REFERENCES

M. Klazar, Twelve countings with rooted plane trees, European Journal of Combinatorics 18 (1997), 195-210; Addendum, 18 (1997), 739-740.

LINKS

Index entries for sequences related to rooted trees

CROSSREFS

Sequence in context: A149365 A000759 A076793 this_sequence A039740 A065143 A098543

Adjacent sequences: A007857 A007858 A007859 this_sequence A007861 A007862 A007863

KEYWORD

nonn

AUTHOR

Martin Klazar (klazar(AT)kam.mff.cuni.cz)

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.


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