We propose a computational method to obtain series expansions in powers of
time for general dynamical systems described by a set of hierarchical rate
equations. The method is generally applicable to problems in both equilibrium
and nonequilibrium statistical mechanics such as random sequential adsorption,
diffusion-reaction dynamics, and Ising dynamics. New result of random
sequential adsorption of dimers on a square lattice is presented.Comment: LaTeX, 9 pages including 1 figur