OFFSET
0,3
LINKS
Harvey P. Dale, Table of n, a(n) for n = 0..100
MATHEMATICA
With[{nn=30}, Take[CoefficientList[Series[Cosh[Cos[x]ArcTan[x]], {x, 0, nn}], x]Range[0, nn]!, {1, -1, 2}]] (* Harvey P. Dale, Oct 15 2012 *)
CROSSREFS
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved