DMTCS Proceedings, Discrete Models for Complex Systems, DMCS'03

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Enumeration of convex polyominoes using the ECO method

A. Del Lungo, E. Duchi, A. Frosini, S. Rinaldi


ECO is a method for the enumeration of classes of combinatorial objects based on recursive constructions of such classes. In the first part of this paper we present a construction for the class of convex polyominoes based on the ECO method. Then we translate this construction into a succession rule. The final goal of the paper is to determine the generating function of convex polyominoes according to the semi-perimeter, and it is achieved by applying an idea introduced in [11].

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