OFFSET
0,2
MATHEMATICA
Select[CoefficientList[Series[Tan[Sin[x]-ArcTan[x]], {x, 0, 30}], x] Range[0, 29]!, #!=0&] (* Harvey P. Dale, Jul 24 2011 *)
CROSSREFS
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved