login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A012512 Expansion of e.g.f.: tan(sinh(x)*log(x+1))=2/2!*x^2-3/3!*x^3+12/4!*x^4-40/5!*x^5... 0
0, 0, 2, -3, 12, -40, 430, -3591, 37464, -373752, 4507738, -58823875, 870967460, -13719012528, 234072634822, -4250060142615, 82733999849648, -1710175098180496, 37504812533836722, -867602777991744483 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..19.

MATHEMATICA

With[{nn=20}, CoefficientList[Series[Tan[Sinh[x]Log[x+1]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Jan 18 2016 *)

CROSSREFS

Sequence in context: A012511 A012309 A012305 * A012516 A012306 A012312

Adjacent sequences:  A012509 A012510 A012511 * A012513 A012514 A012515

KEYWORD

sign

AUTHOR

Patrick Demichel (patrick.demichel(AT)hp.com)

EXTENSIONS

First two terms prepended and definition clarified by  Harvey P. Dale, Jan 18 2016

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified February 25 13:30 EST 2018. Contains 299654 sequences. (Running on oeis4.)