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 A200599 #6 Feb 07 2025 16:44:07
%S A200599 1,3,2,3,4,9,9,6,2,2,7,1,9,5,6,0,4,9,9,3,3,3,9,3,8,5,0,5,1,5,4,9,9,7,
%T A200599 6,3,8,6,7,7,6,2,2,7,6,0,0,7,5,2,3,6,3,3,6,8,5,5,1,5,3,5,1,6,6,2,6,3,
%U A200599 7,2,8,1,8,0,2,2,3,7,9,7,1,8,0,6,9,1,9,0,3,6,4,3,9,9,7,7,2,2,7
%N A200599 Decimal expansion of least x>0 satisfying 3*x^2-4*x+4=tan(x).
%C A200599 See A200338 for a guide to related sequences. The Mathematica program includes a graph.
%e A200599 x=1.3234996227195604993339385051549976386776227600...
%t A200599 a = 3; b = -4; c = 4;
%t A200599 f[x_] := a*x^2 + b*x + c; g[x_] := Tan[x]
%t A200599 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200599 r = x /. FindRoot[f[x] == g[x], {x, 1.3, 1.4}, WorkingPrecision -> 110]
%t A200599 RealDigits[r] (* A200599 *)
%Y A200599 Cf. A200338.
%K A200599 nonn,cons
%O A200599 1,2
%A A200599 _Clark Kimberling_, Nov 19 2011