Séminaire Lotharingien de Combinatoire, B55e (2006), 20 pp.

Roland Bacher and Gilles Schaeffer

On Generating Series of Coloured Planar Trees

Abstract. We generalize and reprove an identity of Parker and Loday. It states that certain pairs of generating series associated to coloured plane rooted trees are mutually reciprocal series.

Received: November 15, 2004. Accepted: February 14, 2006. Final Version: October 1, 2006.

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