OFFSET
1,1
COMMENTS
What is the density of the sequence? I am convinced that this sequence has the same density as A026313.
EXAMPLE
|cos(5)*cos(7)| < (cos(6))^2, therefore 5 is in the sequence.
MATHEMATICA
Select[Range[120], Abs[Cos[ # ]*Cos[ # + 2]] < Cos[ # + 1]^2 &]
CROSSREFS
KEYWORD
nonn
AUTHOR
Stefan Steinerberger, Apr 12 2006
EXTENSIONS
Offset corrected by Sean A. Irvine, Sep 25 2019
STATUS
approved