OFFSET
0,2
MATHEMATICA
Tan[ x ]*Sin[ Tan[ x ] ] (* Even Part *)
nn = 20; Table[(CoefficientList[Series[Sin[Tan[x]]*Tan[x], {x, 0, 2*nn}], x] * Range[0, 2*nn]!)[[n]], {n, 1, 2*nn+1, 2}] (* Vaclav Kotesovec, Jan 24 2015 *)
CROSSREFS
KEYWORD
sign
AUTHOR
EXTENSIONS
Extended with signs by Olivier Gérard, Mar 15 1997
STATUS
approved