A292953 E.g.f.: exp(-1/2! * x^2 * exp(x)).

1, 0, -1, -3, -3, 20, 150, 504, -343, -18180, -140220, -500500, 2032899, 50210082, 441768236, 1740141480, -13025325615, -330558552376, -3452606080848, -16648495695792, 136964192085395, 4315989335784630, 55121200672923924, 352945156766431592

Offset: 0

Author

Seiichi Manyama, Sep 27 2017

Keywords

• sign

Links

• Seiichi Manyama, Table of n, a(n) for n = 0..541

Crossrefs

Column k=2 of A293015.

Cf. A292952 (k=1), this sequence (k=2), A292954 (k=3), A292955 (k=4).

Programs

PARI

x='x+O('x^66); Vec(serlaplace(exp(-1/2!*x^2*exp(x))))