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A094674 Coefficients of polynomial in x multiplying sinh(x) in the modified spherical Bessel function of the first kind i_n(x). 2
1, -1, 1, 0, 3, -6, 0, -15, 1, 0, 45, 0, 105, -15, 0, -420, 0, -945, 1, 0, 210, 0, 4725, 0, 10395, -28, 0, -3150, 0, -62370, 0, -135135, 1, 0, 630, 0, 51975, 0, 945945, 0, 2027025, -45, 0, -13860, 0, -945945, 0, -16216200, 0, -34459425, 1, 0, 1485, 0, 315315, 0, 18918900, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

LINKS

Table of n, a(n) for n=0..57.

EXAMPLE

sinh(x)/x, (x*cosh(x) - sinh(x))/x^2, (-3*x*cosh(x) + (3 + x^2)*sinh(x))/x^3, ...

Triangle begins:

    1;

   -1;

    1, 0,   3;

   -6, 0,  -15;

    1, 0,   45, 0,  105;

  -15, 0, -420, 0, -945;

  ...

CROSSREFS

Cf. A094675.

Sequence in context: A070297 A284896 A299032 * A125287 A264813 A009014

Adjacent sequences:  A094671 A094672 A094673 * A094675 A094676 A094677

KEYWORD

sign,tabf

AUTHOR

Eric W. Weisstein, May 19 2004

EXTENSIONS

Keyword tabf from Michel Marcus, May 06 2020

STATUS

approved

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Last modified July 31 08:59 EDT 2021. Contains 346369 sequences. (Running on oeis4.)