\BOOKMARK [1][-]{section.1}{Introduction}{}% 1
\BOOKMARK [1][-]{section.2}{Preliminary lemmas}{}% 2
\BOOKMARK [1][-]{section.3}{Sums related to multiple harmonic sums}{}% 3
\BOOKMARK [1][-]{section.4}{Some numerical examples}{}% 4
\BOOKMARK [1][-]{section.5}{Proof of Proposition 10 and Theorem 2}{}% 5
\BOOKMARK [1][-]{section.6}{Acknowledgment}{}% 6