\BOOKMARK [1][-]{section.1}{Introduction}{}
\BOOKMARK [1][-]{section.2}{The ECO method}{}
\BOOKMARK [2][-]{subsection.2.1}{Parametric production matrices and weighted succession rules}{section.2}
\BOOKMARK [1][-]{section.3}{The Main Example}{}
\BOOKMARK [2][-]{subsection.3.1}{Dyck paths}{section.3}
\BOOKMARK [2][-]{subsection.3.2}{The matrix}{section.3}
\BOOKMARK [2][-]{subsection.3.3}{Examples}{section.3}