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 A200363 #6 Feb 07 2025 16:44:06
%S A200363 1,4,6,8,9,4,8,1,7,5,4,0,7,9,2,8,0,9,3,8,9,8,5,1,0,4,3,0,6,7,8,4,6,8,
%T A200363 8,2,0,6,6,9,8,8,6,2,2,9,7,8,0,3,1,9,7,5,8,5,4,1,9,3,2,9,9,7,7,0,5,9,
%U A200363 4,5,5,1,2,9,0,6,9,4,8,9,5,3,6,1,3,1,7,8,9,9,8,2,0,9,9,0,8,4,4
%N A200363 Decimal expansion of least x>0 satisfying 2*x^2+x+4=tan(x).
%C A200363 See A200338 for a guide to related sequences. The Mathematica program includes a graph.
%e A200363 x=1.468948175407928093898510430678468820669886...
%t A200363 a = 2; b = 1; c = 4;
%t A200363 f[x_] := a*x^2 + b*x + c; g[x_] := Tan[x]
%t A200363 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200363 r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
%t A200363 RealDigits[r] (* A200363 *)
%Y A200363 Cf. A200338.
%K A200363 nonn,cons
%O A200363 1,2
%A A200363 _Clark Kimberling_, Nov 17 2011