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A202622 Denominators of coefficients in Taylor series expansion of log(cotan(x)*arcsinh(x)). 1
1, 2, 60, 18, 22680, 85050, 52123500, 3831077250, 142098138000, 325641566250, 58468943220187500, 27563930375231250, 798802702274201625000, 3634552295347617393750, 1801743872907365887500, 14229272236285922096531250, 13586109131205798417768037500000, 43305722855718482456635619531250 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

EXAMPLE

-1/2*x^2-1/60*x^4-1/18*x^6+347/22680*x^8-1531/85050*x^10+590267/52123500*x^12+...

CROSSREFS

Cf. A012868.

Sequence in context: A050283 A096758 A262638 * A113549 A268432 A117482

Adjacent sequences:  A202619 A202620 A202621 * A202623 A202624 A202625

KEYWORD

sign,frac

AUTHOR

N. J. A. Sloane, Dec 21 2011

STATUS

approved

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Last modified October 20 05:42 EDT 2017. Contains 293601 sequences.