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!)
A141332 a(n) = number of positive integers k, k < n, where |the sine of k radians| is < |the sine of n radians|. Also, a(n) = number of positive integers k, k < n, where |the cosine of k radians| is > |the cosine of n radians|. 6

%I #10 May 10 2018 09:15:39

%S 0,1,0,1,4,1,2,7,2,3,10,3,3,12,6,2,13,9,1,14,12,0,15,16,1,14,21,4,13,

%T 26,7,12,31,10,10,33,15,7,32,20,4,31,25,1,30,31,2,27,38,7,24,45,12,21,

%U 52,17,17,54,24,12,51,31,7,48,38,2,45,46,3,40,55,10,35,64,17,30,73,24

%N a(n) = number of positive integers k, k < n, where |the sine of k radians| is < |the sine of n radians|. Also, a(n) = number of positive integers k, k < n, where |the cosine of k radians| is > |the cosine of n radians|.

%H Diana Mecum, <a href="/A141332/b141332.txt">Table of n, a(n) for n = 1..1000</a>

%t Total/@Table[If[Abs[Sin[n]]<Abs[Sin[k]],1,0],{k,80},{n,k-1}] (* _Harvey P. Dale_, May 10 2018 *)

%Y Cf. A141330, A141331, A141333, A141334, A141335.

%K nonn

%O 1,5

%A _Leroy Quet_, Jun 25 2008

%E More terms from _Diana L. Mecum_, Jul 18 2008

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 19 17:36 EDT 2024. Contains 371795 sequences. (Running on oeis4.)