OFFSET
0,4
MATHEMATICA
With[{nn=30}, CoefficientList[Series[Log[Sec[x]-Log[x+1]], {x, 0, nn}], x] Range[ 0, nn]!] (* Harvey P. Dale, Oct 16 2014 *)
CROSSREFS
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
EXTENSIONS
There was a missing initial term and the signs were wrong. Corrected by N. J. A. Sloane, Dec 17 2011.
Definition clarified by Harvey P. Dale, Oct 16 2014
STATUS
approved