OFFSET
0,2
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+...
MATHEMATICA
Take[CoefficientList[Series[Log[Cot[x]ArcSinh[x]], {x, 0, 40}], x], {1, -1, 2}]//Denominator (* Harvey P. Dale, Jul 12 2023 *)
CROSSREFS
KEYWORD
nonn,frac
AUTHOR
N. J. A. Sloane, Dec 21 2011
STATUS
approved