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 A200368 #6 Feb 07 2025 16:44:06
%S A200368 1,4,8,6,8,3,2,1,2,2,2,3,5,9,2,9,0,1,4,2,9,7,6,8,9,5,0,9,4,5,2,1,3,4,
%T A200368 2,4,0,1,2,6,8,2,7,6,8,9,9,9,3,8,5,6,3,5,3,4,3,9,7,2,3,4,6,8,7,4,5,0,
%U A200368 9,6,7,7,4,0,4,0,4,4,1,6,8,0,1,6,1,4,0,3,0,1,9,1,5,7,6,0,9,0,5
%N A200368 Decimal expansion of least x>0 satisfying 2*x^2+3*x+3=tan(x).
%C A200368 See A200338 for a guide to related sequences. The Mathematica program includes a graph.
%e A200368 x=1.48683212223592901429768950945213424012682768999...
%t A200368 a = 2; b = 3; c = 3;
%t A200368 f[x_] := a*x^2 + b*x + c; g[x_] := Tan[x]
%t A200368 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200368 r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
%t A200368 RealDigits[r] (* A200368 *)
%Y A200368 Cf. A200338.
%K A200368 nonn,cons
%O A200368 1,2
%A A200368 _Clark Kimberling_, Nov 17 2011