OFFSET
0,5
REFERENCES
R. W. Gosper, personal communication, Mar 07, 2002
EXAMPLE
4/189*x^9+4/189*x^11+377/12474*x^13+1202/43659*x^15+...
MATHEMATICA
Take[Denominator[CoefficientList[Series[Tan[ArcSinh[x]]-Sin[ArcTanh[x]], {x, 0, 40}], x]], {2, -1, 2}] (* Harvey P. Dale, Dec 17 2014 *)
CROSSREFS
KEYWORD
nonn,frac
AUTHOR
N. J. A. Sloane, Mar 23 2002
STATUS
approved