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!)
A246450 Nonnegative integers k satisfying sin(k)*cos(k+1) < 0. 4
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 17, 18, 20, 21, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 36, 37, 39, 40, 42, 43, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 58, 59, 61, 62, 64, 65, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 80 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
MATHEMATICA
z = 200;
Select[Range[0, z], Sin[#] Cos[# + 1] < 0 &] (* A246450 *)
Select[Range[0, z], Sin[#] Cos[# + 1] > 0 &] (* A246451 *)
CROSSREFS
Cf. A246451 (complement of A246450), A246442.
Sequence in context: A028830 A327749 A171828 * A049814 A028828 A334139
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Aug 26 2014
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 July 17 05:50 EDT 2024. Contains 374360 sequences. (Running on oeis4.)