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A013185
E.g.f.: log(cosh(x)+log(x+1)).
0
0, 1, -1, 4, -19, 113, -813, 6921, -68290, 766909, -9660965, 134950693, -2070706988, 34628733267, -626946816195, 12218295424331, -255043813997776, 5677409949583369, -134259854938074137
OFFSET
0,4
EXAMPLE
log(cosh(x)+log(x+1))=x-1/2!*x^2+4/3!*x^3-19/4!*x^4+113/5!*x^5...
MATHEMATICA
With[{nn=20}, CoefficientList[Series[Log[Cosh[x]+Log[x+1]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Mar 05 2015 *)
CROSSREFS
Sequence in context: A127548 A331326 A122835 * A353607 A186359 A203268
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
EXTENSIONS
Zero prepended and definition clarified by Harvey P. Dale, Mar 05 2015
STATUS
approved