A070751 - OEIS

%I #6 Dec 24 2023 16:54:44

%S 4,5,6,10,11,12,16,17,18,22,23,24,25,29,30,31,35,36,37,41,42,43,48,49,

%T 50,54,55,56,60,61,62,66,67,68,69,73,74,75,79,80,81,85,86,87,92,93,94,

%U 98,99,100,104,105,106,110,111,112,113,117

%N Numbers n such that sin(n) < 0.

%C A070747(a(n)) = -1.

%t Select[Range[150],Sin[#]<0&] (* _Harvey P. Dale_, Dec 24 2023 *)

%Y Cf. A070752, A070753.

%K nonn

%O 1,1

%A _Reinhard Zumkeller_, May 04 2002