A293017 E.g.f.: exp(-x^3 * exp(x)).

1, 0, 0, -6, -24, -60, 240, 4830, 39984, 180936, -605520, -24616350, -318005160, -2385790836, -86488584, 350543790870, 6917020827360, 79778558317200, 357117438258144, -9237998478286134, -304182278908538040, -5166739059890655660, -48968796671246843160

Offset: 0

Author

Seiichi Manyama, Sep 28 2017

Keywords

• sign

Links

• Seiichi Manyama, Table of n, a(n) for n = 0..505

Crossrefs

Column k=3 of A293019.

Cf. A292908.

Programs

Maple

seq(k!*coeftayl(exp(-x^3*exp(x)), x = 0, k),k=0..30); # Muniru A Asiru, Oct 01 2017

Mathematica

With[{nn=30},CoefficientList[Series[Exp[-x^3Exp[x]],{x,0,nn}],x] Range[ 0,nn]!] (* Harvey P. Dale, Nov 04 2019 *)

PARI

x='x+O('x^66); Vec(serlaplace(exp(-x^3*exp(x))))

Formula

a(n) = (-1)^n * A292908(n).