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 A198429 #8 Apr 23 2025 12:35:44
%S A198429 2,5,9,7,6,5,9,6,1,1,1,6,7,3,4,8,3,5,2,7,1,9,8,6,0,8,4,6,9,3,1,7,8,3,
%T A198429 6,0,0,8,5,5,8,8,8,4,5,7,5,1,7,1,7,1,2,2,1,7,1,2,5,0,6,4,6,3,5,0,1,6,
%U A198429 7,0,4,6,4,6,9,9,4,8,4,6,1,4,5,4,4,8,9,2,8,4,8,7,3,2,4,1,9,7,5
%N A198429 Decimal expansion of x>0 having x^2-2x=3*sin(x).
%C A198429 See A198414 for a guide to related sequences. The Mathematica program includes a graph.
%H A198429 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%e A198429 2.597659611167348352719860846931783600...
%t A198429 a = 1; b = -2; c = 3;
%t A198429 f[x_] := a*x^2 + b*x; g[x_] := c*Sin[x]
%t A198429 Plot[{f[x], g[x]}, {x, -.2, 3}]
%t A198429 r = x /. FindRoot[f[x] == g[x], {x, 2.59, 2.60}, WorkingPrecision -> 110]
%t A198429 RealDigits[r] (* A198429 *)
%Y A198429 Cf. A198414.
%K A198429 nonn,cons
%O A198429 1,1
%A A198429 _Clark Kimberling_, Oct 25 2011