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A292098
Number of multisets of chair trees constructed from n chairs.
0
1, 1, 4, 19, 104, 612, 3821, 24746, 165060, 1125442, 7810707, 54988526, 391760249, 2819145479, 20461211968, 149608592569
OFFSET
0,3
LINKS
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: A367808 A276975 A178302 * A186997 A367239 A062265
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Sep 11 2017
STATUS
approved