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 A200383 #6 Feb 07 2025 16:44:06
%S A200383 1,4,9,6,6,7,5,5,4,8,7,8,8,8,1,6,0,6,9,0,1,6,4,1,8,4,4,9,3,8,9,0,0,6,
%T A200383 7,1,4,5,8,7,6,7,0,2,3,6,1,7,3,6,8,9,3,4,6,9,9,5,0,2,2,3,1,8,8,4,1,2,
%U A200383 6,4,6,0,3,6,4,6,9,5,9,0,1,5,3,4,9,3,9,5,8,2,3,8,1,2,6,8,2,1,2
%N A200383 Decimal expansion of least x>0 satisfying 2*x^2+4x+3=tan(x).
%C A200383 See A200338 for a guide to related sequences. The Mathematica program includes a graph.
%e A200383 x=1.4966755487888160690164184493890067145876702...
%t A200383 a = 2; b = 4; c = 3;
%t A200383 f[x_] := a*x^2 + b*x + c; g[x_] := Tan[x]
%t A200383 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200383 r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
%t A200383 RealDigits[r] (* A200383 *)
%Y A200383 Cf. A200338.
%K A200383 nonn,cons
%O A200383 1,2
%A A200383 _Clark Kimberling_, Nov 17 2011