Séminaire Lotharingien de Combinatoire, B22j (1989), 38 pp.
[Formerly: Publ. I.R.M.A. Strasbourg, 1990, 414/S-22, p.
93-130.]
Jean-Guy Penaud
Une nouvelle bijection pour les animaux dirigés
Abstract.
This paper presents a new bijection for the animals problem. It uses
Viennot's theory of heap of
pieces and gives an easy coding. This bijection can be extended in
three dimensions in relation with the hard hexagon problem
recently solved in an analytic way by Baxter.
The following version is available: