\BOOKMARK [1][-]{section.1}{Introduction}{}% 1
\BOOKMARK [1][-]{section.2}{A combinatorial result}{}% 2
\BOOKMARK [1][-]{section.3}{Triangle g1\(n,k\)}{}% 3
\BOOKMARK [1][-]{section.4}{Triangle g2\(n,k\)}{}% 4
\BOOKMARK [1][-]{section.5}{Triangle g3\(n,k\)}{}% 5
\BOOKMARK [1][-]{section.6}{Triangle g4\(n,k\)}{}% 6
\BOOKMARK [1][-]{section.7}{Some explicit formulas and identities}{}% 7
\BOOKMARK [1][-]{section.8}{Acknowledgment}{}% 8