OFFSET
0,4
EXAMPLE
f(x) = 1 +1x -1x^2/2! +10x^3/3! -159x^4/4! +3816x^5/5! -125375x^6/6! +-...
where f(x*f(x)) = exp(x).
CROSSREFS
KEYWORD
sign
AUTHOR
Paul D. Hanna, Sep 18 2003
STATUS
approved