References

1

J. M. Borwein, P. B. Borwein, and K. Dilcher, ``Pi, Euler Numbers, and Asymptotic Expansions'', American Mathematical Monthly, 96, No. 8, (October 1989), pp 681-687.

2

Robert M. Corless, ``Error Backward'', in Chaotic Numerics, AMS Contemporary Mathematics Series vol 172, Peter Kloeden and K. J. Palmer, eds, (1994) pp 31-62.

3

G. Labelle, ``Sur l'Inversion et l'Itération Continue des Séries Formelles'', Europ. J. Combinatorics (1980) 1, pp 113-138.

4

Bruno Salvy and Paul Zimmermann, ``GFUN: A Maple Package for the Maniuplation of Generating and Holonomic Functions in One Variable'' preprint.