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A293120 E.g.f.: exp(x^2/(1+x)). 3
1, 0, 2, -6, 36, -240, 1920, -17640, 183120, -2116800, 26943840, -374220000, 5628934080, -91122071040, 1579034096640, -29155689763200, 571308920582400, -11838533804697600, 258608278645516800, -5938673374272038400, 143003892952893772800 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Seiichi Manyama, Table of n, a(n) for n = 0..444

FORMULA

a(n) = (-1)^n * A052845(n).

a(n) ~ (-1)^n * n^(n-1/4) * exp(-3/2 + 2*sqrt(n) - n)/sqrt(2). - Vaclav Kotesovec, Sep 30 2017

MATHEMATICA

CoefficientList[Series[E^(x^2/(1+x)), {x, 0, 20}], x] * Range[0, 20]! (* Vaclav Kotesovec, Sep 30 2017 *)

PROG

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

CROSSREFS

Column k=1 of A293133.

Cf. A111884, A293121.

Cf. A052845.

Sequence in context: A002868 A002869 A052845 * A052832 A058583 A075096

Adjacent sequences:  A293117 A293118 A293119 * A293121 A293122 A293123

KEYWORD

sign

AUTHOR

Seiichi Manyama, Sep 30 2017

STATUS

approved

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Last modified December 16 01:32 EST 2019. Contains 330013 sequences. (Running on oeis4.)