A094675 - OEIS

%I #12 May 06 2020 05:36:41

%S 1,0,-3,0,1,0,15,0,-10,0,-105,0,1,0,105,0,945,0,-21,0,-1260,0,-10395,

%T 0,1,0,378,0,17325,0,135135,0,-36,0,-6930,0,-270270,0,-2027025,0,1,0,

%U 990,0,135135,0,4729725,0,34459425,0,-55,0,-25740,0,-2837835,0,-91891800,0

%N Coefficients of polynomial in x multiplying cosh(x) in the modified spherical Bessel function of the first kind i_n(x).

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

%e Triangle begins:

%e     1, 0;

%e    -3, 0;

%e     1, 0,   15, 0;

%e   -10, 0, -105, 0;

%e     1, 0,  105, 0, 945, 0;

%e   ...

%Y Cf. A094674.

%K sign,tabf

%O 0,3

%A _Eric W. Weisstein_, May 19 2004

%E Keyword tabf from _Michel Marcus_, May 06 2020