A332487 Numbers k such that sin(k) < 0 or cos(k) < 0.

2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 17, 18, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 40, 41, 42, 43, 46, 47, 48, 49, 50, 52, 53, 54, 55, 56, 59, 60, 61, 62, 65, 66, 67, 68, 69, 71, 72, 73, 74, 75, 77, 78, 79, 80, 81, 84, 85, 86, 87

Offset

1,1

Links

Table of n, a(n) for n=1..66.

Mathematica

Select[Range[100], Sin[#] > 0 || Cos[#] > 0 &] (* A332484 *)
Select[Range[100], Sin[#] > 0 || Cos[#] < 0 &] (* A332485 *)
Select[Range[100], Sin[#] < 0 || Cos[#] > 0 &] (* A332486 *)
Select[Range[100], Sin[#] < 0 || Cos[#] < 0 &] (* A332487 *)

Crossrefs

Cf. A332480-A332483, A332484-A332486.

Sequence in context: A356899 A230780 A302540 * A067942 A130176 A156541

Adjacent sequences: A332484 A332485 A332486 * A332488 A332489 A332490

Keyword

nonn,easy

Author

Clark Kimberling, Apr 14 2020

Status

approved