  We describe a program for computing the abundances of light elements produced
during Big Bang Nucleosynthesis which is publicly available at
http://parthenope.na.infn.it/. Starting from nuclear statistical equilibrium
conditions the program solves the set of coupled ordinary differential
equations, follows the departure from chemical equilibrium of nuclear species,
and determines their asymptotic abundances as function of several input
cosmological parameters as the baryon density, the number of effective
neutrino, the value of cosmological constant and the neutrino chemical
potential. The program requires commercial NAG library routines.
