OFFSET
0,5
MATHEMATICA
With[{nn=30}, CoefficientList[Series[Cos[Exp[x]-Sec[x]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Mar 27 2022 *)
CROSSREFS
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
EXTENSIONS
Definition clarified by Harvey P. Dale, Mar 27 2022
STATUS
approved