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A094654 Number of unlabeled 10-gonal 2-trees with n 10-gons. 0
1, 1, 1, 6, 39, 482, 7053, 117399, 2070289, 38097139, 723169329, 14074851642, 279609377638, 5651139037570, 115901006038377, 2407291353219949, 50553753543016719, 1071971262516091572, 22926544048209731554 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..18.

G. Labelle, C. Lamathe and P. Leroux, Labeled and unlabeled enumeration of k-gonal 2-trees

CROSSREFS

Cf. A054581.

Sequence in context: A145709 A280006 A034661 * A145001 A263955 A108937

Adjacent sequences:  A094651 A094652 A094653 * A094655 A094656 A094657

KEYWORD

nonn

AUTHOR

Vladeta Jovovic, Jun 06 2004

STATUS

approved

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Last modified June 2 08:16 EDT 2020. Contains 334767 sequences. (Running on oeis4.)