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A292099 Number of P_3 chair trees constructed from n chairs. 0
1, 2, 9, 43, 242, 1437, 9058, 59062, 396207, 2713848, 18906784, 133534659, 953964640, 6881027743, 50044650836 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..14.

Isaac B. Michael and M. R. Sepanski, Net regular signed trees, Australasian Journal of Combinatorics, Volume 66(2) (2016), 192-204.

CROSSREFS

Sequence in context: A055824 A334680 A324619 * A020113 A345414 A272199

Adjacent sequences:  A292096 A292097 A292098 * A292100 A292101 A292102

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Sep 11 2017

STATUS

approved

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Last modified May 25 03:39 EDT 2022. Contains 354047 sequences. (Running on oeis4.)