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A227809 Number of rooted identity trees with n nodes and exactly 5 subtrees from the root. 2
1, 6, 18, 57, 165, 460, 1242, 3295, 8589, 22169, 56675, 143941, 363527, 914253, 2291088, 5725579, 14275461, 35526939, 88279211, 219088566, 543169235, 1345516437, 3330785029, 8240718421, 20379364252, 50380569630, 124513186628, 307663311638, 760095010218 (list; graph; refs; listen; history; text; internal format)
OFFSET

15,2

LINKS

Alois P. Heinz, Table of n, a(n) for n = 15..800

EXAMPLE

: n=15     o        :

:       / /|\ \     :

:      / ( | ) \    :

:     o  o o o  o   :

:    /|  | | |      :

:   o o  o o o      :

:   |    | |        :

:   o    o o        :

:        |          :

:        o          :

CROSSREFS

Column k=5 of A227774.

Sequence in context: A035070 A075386 A056343 * A119106 A223468 A223211

Adjacent sequences:  A227806 A227807 A227808 * A227810 A227811 A227812

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Jul 31 2013

STATUS

approved

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Last modified February 25 22:37 EST 2021. Contains 341618 sequences. (Running on oeis4.)