A202379 Denominators of coefficients in Taylor series expansion of log(cosec(x)*log(x+1)).

1, 2, 8, 8, 960, 288, 1152, 17280, 5806080, 89600, 87091200, 17418240, 213497856000, 402361344000, 62768369664000, 295206912, 102437979291648000, 342372925440000, 256094948229120000, 5377993912811520000, 61309130606051328000000, 89903156428800000, 12450469599998115840000, 73570956727261593600000

Offset

0,2

Links

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

Example

-1/2*x+3/8*x^2-1/8*x^3+89/960*x^4-19/288*x^5+61/1152*x^6-751/17280*x^7+214157/5806080*x^8-
2857/89600*x^9+2440391/87091200*x^10 +...

Maple

t1:=log(csc(x)*log(x+1));
t2:=series(t1, x, 30);
t3:=seriestolist(t2);
t4:=map(numer, t3); t5:=map(denom, t3); lprint(t2);

Crossrefs

Cf. A012854.

Sequence in context: A170923 A083523 A202619 * A009181 A009666 A012346

Adjacent sequences: A202376 A202377 A202378 * A202380 A202381 A202382

Keyword

nonn,frac

Author

N. J. A. Sloane, Dec 18 2011

Status

approved