Journal of Integer Sequences, Vol. 10 (2007), Article 07.8.4

Exponential Generating Functions for Trees with Weighted Edges and Labeled Nodes


Wen-jin Woan
Howard University
Washington, DC 20059
USA

Barbara Tankersley
North Carolina Agricultural and Technical State University
Greensboro, NC 27411
USA

Abstract:

We study labeled trees and find that this is a class of combinatorial objects which is perfect for the study of some exponential generating functions.

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(Concerned with sequences A000670 A000828 A002866 A050351 and A080635 .)

Received May 14 2007; revised version received August 7 2007. Published in Journal of Integer Sequences, August 13 2007.

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