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 A200349 #6 Feb 07 2025 16:44:06
%S A200349 1,4,6,0,8,1,3,0,5,2,2,2,3,0,5,1,5,0,3,4,1,9,2,4,2,6,6,3,3,7,9,0,6,0,
%T A200349 0,7,2,4,9,3,2,4,7,9,1,0,1,6,3,7,8,1,5,6,2,0,1,0,3,9,3,2,4,6,1,9,8,2,
%U A200349 2,2,7,0,4,5,2,4,4,1,7,9,9,1,3,6,9,8,4,6,2,2,3,8,0,9,6,2,2,6,8
%N A200349 Decimal expansion of least x>0 satisfying x^2+2x+4=tan(x).
%C A200349 See A200338 for a guide to related sequences. The Mathematica program includes a graph.
%e A200349 x=1.460813052223051503419242663379060072493247910...
%t A200349 a = 1; b = 2; c = 4;
%t A200349 f[x_] := a*x^2 + b*x + c; g[x_] := Tan[x]
%t A200349 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200349 r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
%t A200349 RealDigits[r] (* A200349 *)
%Y A200349 Cf. A200338.
%K A200349 nonn,cons
%O A200349 1,2
%A A200349 _Clark Kimberling_, Nov 16 2011