This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A197328 #14 Apr 10 2021 11:32:54
%S A197328 2,1,7,3,1,6,8,1,3,1,5,3,0,3,6,5,4,3,4,8,6,3,4,2,7,0,4,2,8,6,0,1,0,2,
%T A197328 7,6,9,2,4,5,0,3,3,1,2,5,0,3,4,5,0,7,0,6,0,4,4,5,0,3,6,1,4,4,1,8,4,1,
%U A197328 8,8,1,8,5,0,4,5,9,4,1,9,8,2,4,1,0,0,7,2,4,4,8,8,1,3,4,9,5,6,0
%N A197328 Decimal expansion of least x > 0 having sin(x) = sin(Pi*x/6)^2.
%C A197328 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.
%e A197328 x=2.17316813153036543486342704286010276...
%t A197328 b = 1; c = Pi/6; f[x_] := Sin[x]
%t A197328 t = x /. FindRoot[f[b*x] == f[c*x]^2, {x, 2, 2.5}, WorkingPrecision -> 200]
%t A197328 RealDigits[t] (* A197328 *)
%t A197328 Plot[{f[b*x], f[c*x]^2}, {x, 0, 2.5}]
%Y A197328 Cf. A197133.
%K A197328 nonn,cons
%O A197328 1,1
%A A197328 _Clark Kimberling_, Oct 13 2011