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A026313 Numbers n such that |sin(n)*sin(n+2)| < (sin(n+1))^2. 1
0, 1, 3, 4, 6, 7, 10, 13, 14, 16, 17, 19, 20, 22, 23, 25, 26, 28, 29, 32, 35, 36, 38, 39, 41, 42, 44, 45, 47, 48, 50, 51, 54, 57, 58, 60, 61, 63, 64, 66, 67, 69, 70, 72, 73, 76, 79, 80, 82, 83, 85, 86, 88, 89, 91, 92, 94, 95, 98, 101, 102, 104, 105, 107, 108, 110, 111, 113, 114 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..69.

MATHEMATICA

Select[Range[120], Abs[Sin[ # ]*Sin[ # + 2]] < Sin[ # + 1]^2 &] (* Stefan Steinerberger, Apr 12 2006 *)

CROSSREFS

Cf. A117672.

Sequence in context: A239438 A317138 A032387 * A024912 A108588 A194095

Adjacent sequences:  A026310 A026311 A026312 * A026314 A026315 A026316

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

More terms from Stefan Steinerberger, Apr 12 2006

Missing a(1)=0 inserted by Sean A. Irvine, Sep 25 2019

STATUS

approved

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Last modified July 14 09:22 EDT 2020. Contains 335720 sequences. (Running on oeis4.)