1,1

Labeled rooted trees with 2-colored nodes.

Index entries for sequences related to rooted trees

E.g.f. B(2x) where B(x) is e.g.f. of A000169.

Cf. A000169, A038055-A038062.

Equals 2 * A052746(n).

Sequence in context: A026739 A060635 A009478 this_sequence A005615 A107270 A125814

Adjacent sequences: A038054 A038055 A038056 this_sequence A038058 A038059 A038060

nonn

Christian G. Bower (bowerc(AT)usa.net), Jan 04 1999.

New description from Vladeta Jovovic (vladeta(AT)eunet.rs), Mar 08 2003