\BOOKMARK [1][-]{section.1}{Introduction}{}% 1
\BOOKMARK [1][-]{section.2}{Preliminaries}{}% 2
\BOOKMARK [2][-]{subsection.2.1}{Basic concepts of hyperplane arrangements}{section.2}% 3
\BOOKMARK [2][-]{subsection.2.2}{Delannoy numbers and Schr\366der numbers}{section.2}% 4
\BOOKMARK [1][-]{section.3}{Main result}{}% 5
\BOOKMARK [2][-]{subsection.3.1}{The characteristic polynomial of CTn}{section.3}% 6
\BOOKMARK [2][-]{subsection.3.2}{The exponential generating function for CTn\(t\)}{section.3}% 7
\BOOKMARK [2][-]{subsection.3.3}{Remark}{section.3}% 8
\BOOKMARK [1][-]{section.4}{Acknowledgments}{}% 9