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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..18.

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: A174123 A127548 A122835 * A186359 A203268 A209673

Adjacent sequences:  A013182 A013183 A013184 * A013186 A013187 A013188

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

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Last modified January 18 04:47 EST 2019. Contains 319269 sequences. (Running on oeis4.)