login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A013165 sec(arctanh(x)+log(x+1))=1+4/2!*x^2-6/3!*x^3+115/4!*x^4-500/5!*x^5... 0
1, 0, 4, -6, 115, -500, 8830, -70770, 1316825, -15886440, 324218600, -5249917750, 119185529675, -2412502361100, 61104527105050, -1476059511449250, 41607421213320625, -1162370434739930000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..17.

CROSSREFS

Sequence in context: A012909 A219507 A012934 * A337466 A052672 A137025

Adjacent sequences:  A013162 A013163 A013164 * A013166 A013167 A013168

KEYWORD

sign

AUTHOR

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

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
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 29 02:47 EDT 2020. Contains 337420 sequences. (Running on oeis4.)