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

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