A202620 Denominators of coefficients in Taylor series expansion of log(cotan(x)*arcsin(x)).

1, 6, 60, 5670, 22680, 103950, 52123500, 3831077250, 142098138000, 3508136593211250, 58468943220187500, 33366863085806250, 798802702274201625000, 18172761476738086968750, 1801743872907365887500, 56608788046690826740700156250, 13586109131205798417768037500000, 43305722855718482456635619531250

Offset

0,2

Links

Table of n, a(n) for n=0..17.

Example

-1/6*x^2-1/60*x^4+67/5670*x^6+347/22680*x^8+1417/103950*x^10+...

Crossrefs

Cf. A012865.

Sequence in context: A061431 A261523 A318131 * A075069 A324200 A335733

Adjacent sequences: A202617 A202618 A202619 * A202621 A202622 A202623

Keyword

nonn,frac

Author

N. J. A. Sloane, Dec 21 2011

Status

approved