0,4

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

Cf. A054581.

Sequence in context: A006678 A145709 A034661 this_sequence A145001 A108937 A045565

Adjacent sequences: A094651 A094652 A094653 this_sequence A094655 A094656 A094657

nonn

Vladeta Jovovic (vladeta(AT)eunet.rs), Jun 06 2004