OFFSET
0,1
COMMENTS
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..200
EXAMPLE
x/2 + x^3/48 + x^5/768 + 61*x^7/645120 + 277*x^9/37158912 + ...
MATHEMATICA
Denominator[Take[CoefficientList[Series[ArcSinh[Csc[x] - Cot[x]], {x, 0, 25}], x], {2, -1, 2}]] (* G. C. Greubel, Nov 12 2016 *)
CROSSREFS
KEYWORD
nonn,frac
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
EXTENSIONS
Name edited by R. J. Mathar, Dec 19 2011
STATUS
approved