A131815 - OEIS

A131815

The 2n-th derivative of exp(1 - 1/(1 - x^2)) evaluated at 0.

1, -2, -12, -120, 1680, 574560, 100457280, 18871332480, 4068839174400, 997177467686400, 265676948766028800, 68775633656816486400, 9975596960728285286400, -9408345873371957191680000, -16902988368910895971399680000

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OFFSET

0,2

COMMENTS

exp( -1/(1 - x^2)) is the standard "mollifier" function.

LINKS

Table of n, a(n) for n=0..14.

MATHEMATICA

Series[Exp[1 -1/(1 - x^2)], {x, 0, 20}]

CROSSREFS

Sequence in context: A236357 A226759 A303557 * A177774 A047793 A048800

Adjacent sequences: A131812 A131813 A131814 * A131816 A131817 A131818

KEYWORD

sign

AUTHOR

Adam Larios (alarios(AT)math.uci.edu), Oct 23 2007

EXTENSIONS

Edited and extended by Olivier Gérard, Oct 30 2007.

STATUS

approved