A293018 E.g.f.: exp(-x^4 * exp(x)).

1, 0, 0, 0, -24, -120, -360, -840, 18480, 359856, 3623760, 26603280, 79821720, -2283258120, -61509151704, -964150419960, -10830864888480, -60512343148320, 1054627338811680, 45270062235647136, 995044394226238920, 15575041436469437160

Offset: 0

Author

Seiichi Manyama, Sep 28 2017

Keywords

• sign

Links

• Seiichi Manyama, Table of n, a(n) for n = 0..491

Crossrefs

Column k=4 of A293019.

Programs

Maple

with(PolynomialTools):
seq(k!coeftayl(exp(-x^4*exp(x)), x = 0, k),k=0..50); # Muniru A Asiru, Oct 01 2017

PARI

x='x+O('x^66); Vec(serlaplace(exp(-x^4*exp(x))))

Extensions

Name corrected by Muniru A Asiru, Oct 01 2017