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Search: id:A007856
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A007856 Subtrees in rooted plane trees on n nodes. +0
1
1, 3, 12, 52, 236, 1109, 5366, 26639, 135300, 701269, 3700400, 19834973, 107784622, 592705377, 3292970302 (list; graph; listen)
OFFSET

1,2

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

Adjacent sequences: A007853 A007854 A007855 this_sequence A007857 A007858 A007859

Sequence in context: A110167 A064036 A125187 this_sequence A010736 A007198 A000256

KEYWORD

nonn

AUTHOR

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

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Last modified October 12 15:26 EDT 2008. Contains 144830 sequences.


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