

A197265


Decimal expansion of least x>0 having sin(3x)=(sin 7x)^2.


2



0, 6, 5, 2, 4, 6, 7, 8, 0, 1, 7, 9, 0, 3, 0, 4, 3, 3, 2, 3, 4, 3, 7, 0, 2, 1, 7, 9, 0, 8, 3, 8, 2, 0, 1, 3, 8, 9, 7, 9, 7, 7, 5, 4, 0, 8, 9, 3, 3, 2, 9, 5, 8, 2, 5, 1, 7, 2, 9, 1, 8, 2, 0, 8, 6, 8, 0, 3, 6, 7, 7, 3, 1, 1, 9, 6, 6, 5, 4, 8, 9, 7, 1, 6, 5, 8, 0, 3, 9, 5, 0, 2, 5, 3, 2, 6, 2, 9, 3, 4, 9
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OFFSET

0,2


COMMENTS

The Mathematica program includes a graph. See A197133 for a guide to least x>0 satisfying sin(b*x)=(sin(c*x))^2 for selected b and c.


LINKS

Table of n, a(n) for n=0..100.


EXAMPLE

x=0.06524678017903043323437021790838201389797754089...


MATHEMATICA

b = 3; c = 7; f[x_] := Sin[x]
t = x /. FindRoot[f[b*x] == f[c*x]^2, {x, .05, .2}, WorkingPrecision > 100]
RealDigits[t] (* A197265 *)
Plot[{f[b*x], f[c*x]^2}, {x, 0, 0.6}]


CROSSREFS

Cf. A197133.
Sequence in context: A144689 A221215 A199180 * A198107 A004554 A178959
Adjacent sequences: A197262 A197263 A197264 * A197266 A197267 A197268


KEYWORD

nonn,cons


AUTHOR

Clark Kimberling, Oct 12 2011


STATUS

approved



