OFFSET
0,2
FORMULA
sin(tanh(x)*cos(x)) = Sum a(n)x^(2n+1)/(2n+1)!.
EXAMPLE
sin(tanh(x)*cos(x)) = x-x^3+(23/30)*x^5-(31/45)*x^7+(13093/22680)*x^9-(5603/12600)*x^11+(6326473/19459440)*x^13-(1172795983/5108103000)*x^15+...
MATHEMATICA
With[{nn=30}, Take[CoefficientList[Series[Sin[Tanh[x]*Cos[x]], {x, 0, nn}], x] Range[0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, Aug 29 2012 *)
CROSSREFS
KEYWORD
sign
AUTHOR
EXTENSIONS
Extended with signs by Olivier Gérard, Mar 15 1997
STATUS
approved