login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A009479 Expansion of sin(sin(x))/cos(x). 0
1, 1, 17, 201, 7041, 291025, 18979729, 1597285977, 176766161281, 24470008076193, 4166922390589073, 854427257015747305, 207778779976099167233, 59114568337761907619441 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
MATHEMATICA
Take[With[{nn=40}, CoefficientList[Series[Sin[Sin[x]]/Cos[x], {x, 0, nn}], x]Range[0, nn-1]!], {2, -1, 2}] (* Harvey P. Dale, Sep 18 2011 *)
CROSSREFS
Sequence in context: A166216 A021134 A065895 * A279448 A017897 A016311
KEYWORD
nonn
AUTHOR
EXTENSIONS
Extended and signs tested Mar 15 1997 by Olivier Gérard.
STATUS
approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 29 10:44 EDT 2024. Contains 371268 sequences. (Running on oeis4.)