A202619 Denominators of coefficients in Taylor series expansion of log(cotan(x)*log(x+1)).

1, 2, 8, 8, 320, 288, 1920, 17280, 5806080, 89600, 87091200, 17418240, 1494484992000, 402361344000, 62768369664000, 295206912, 4097519171665920, 342372925440000, 256094948229120000, 5377993912811520000, 5573557327822848000000, 89903156428800000, 32371220959995101184000, 73570956727261593600000

Offset

0,2

Links

Table of n, a(n) for n=0..23.

Example

-1/2*x-1/8*x^2-1/8*x^3+3/320*x^4-19/288*x^5+59/1920*x^6-751/17280*x^7+...

Crossrefs

Cf. A012863.

Sequence in context: A156052 A170923 A083523 * A202379 A009181 A009666

Adjacent sequences: A202616 A202617 A202618 * A202620 A202621 A202622

Keyword

nonn,frac

Author

N. J. A. Sloane, Dec 21 2011

Status

approved