A026319 a(n) is the n-th nonnegative integer k satisfying |sin(k)| < |cos(k)| < |sin(k+1)|.

7, 10, 13, 16, 29, 32, 35, 38, 51, 54, 57, 60, 73, 76, 79, 82, 95, 98, 101, 104, 117, 120, 123, 126, 139, 142, 145, 148, 161, 164, 167, 170, 186, 189, 192, 208, 211, 214, 230, 233, 236, 252, 255, 258, 274, 277, 280, 296, 299, 302

Offset

1,1

Links

Table of n, a(n) for n=1..50.

Mathematica

Select[Range[0, 310], Abs[Sin[#]]<Abs[Cos[#]]<Abs[Sin[#+1]] &] (* Stefano Spezia, Feb 04 2025 *)

Crossrefs

Cf. A026317, A246303, A327138, A327139.

Sequence in context: A023390 A096678 A327137 * A120153 A375166 A226969

Adjacent sequences: A026316 A026317 A026318 * A026320 A026321 A026322

Keyword

nonn

Author

Clark Kimberling

Status

approved