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!)
A009660 Expansion of tan(sin(tanh(x))). 0

%I #14 Jan 18 2019 12:12:06

%S 1,-1,-7,447,-19471,612127,37384233,-15027743521,3099354722529,

%T -493631745542209,34013990822822489,22054949830590352511,

%U -16492842082602835130159,7774163613641172354365407

%N Expansion of tan(sin(tanh(x))).

%t With[{nn=30},Take[CoefficientList[Series[Tan[Sin[Tanh[x]]],{x,0,nn}],x] Range[0,nn-1]!,{2,-1,2}]] (* _Harvey P. Dale_, Jan 18 2019 *)

%K sign

%O 0,3

%A _R. H. Hardin_

%E Extended with signs by _Olivier GĂ©rard_, Mar 15 1997

%E Previous Mathematica program replaced by _Harvey P. Dale_, Jan 18 2019

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 April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)