OFFSET
0,5
FORMULA
EXAMPLE
E.g.f.: A(x) = 1 - x - x^2/2! - x^3/3! - 23*x^4/4! + 139*x^5/5! - 929*x^6/6! + 12011*x^7/7! - 54319*x^8/! + 664343*x^9/9! + ...
MATHEMATICA
terms = 22; A[_] = 1; Do[A[x_] = Exp[-x] Product[A[x^k], {k, 2, terms}] + O[x]^(terms + 1) // Normal, terms + 1]; CoefficientList[A[x], x] Range[0, terms]!
CROSSREFS
KEYWORD
sign
AUTHOR
Ilya Gutkovskiy, Apr 20 2019
STATUS
approved