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 A200367 #6 Feb 07 2025 16:44:06
%S A200367 1,4,7,8,5,3,2,5,2,2,0,1,6,5,0,1,4,9,2,4,3,4,4,0,8,0,5,0,4,0,9,0,8,4,
%T A200367 3,5,0,7,4,8,3,3,2,7,5,6,3,8,8,4,2,8,4,6,0,5,1,2,8,2,8,0,6,6,7,4,7,5,
%U A200367 7,9,2,2,6,8,0,2,7,3,5,9,4,9,9,9,7,8,2,2,9,2,3,3,5,5,3,5,5,4,4
%N A200367 Decimal expansion of least x>0 satisfying 2*x^2+3*x+2=tan(x).
%C A200367 See A200338 for a guide to related sequences. The Mathematica program includes a graph.
%e A200367 x=1.478532522016501492434408050409084350748332...
%t A200367 a = 2; b = 3; c = 2;
%t A200367 f[x_] := a*x^2 + b*x + c; g[x_] := Tan[x]
%t A200367 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200367 r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
%t A200367 RealDigits[r] (* A200367 *)
%Y A200367 Cf. A200338.
%K A200367 nonn,cons
%O A200367 1,2
%A A200367 _Clark Kimberling_, Nov 17 2011