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 A200411 #6 Feb 07 2025 16:44:07
%S A200411 1,4,8,6,5,3,0,3,9,7,4,1,1,8,9,4,6,0,3,1,2,9,2,5,5,4,9,9,4,6,4,8,6,4,
%T A200411 9,6,0,2,7,4,1,2,7,5,3,4,5,4,6,9,2,8,9,5,5,4,4,1,3,4,6,4,6,0,5,7,6,8,
%U A200411 8,5,2,7,6,7,6,5,6,8,0,2,5,1,1,7,6,5,9,6,0,2,2,7,2,6,9,7,9,1,6
%N A200411 Decimal expansion of least x>0 satisfying 4*x^2+3=tan(x).
%C A200411 See A200338 for a guide to related sequences. The Mathematica program includes a graph.
%e A200411 x=1.486530397411894603129255499464864960274127534...
%t A200411 a = 4; b = 0; c = 3;
%t A200411 f[x_] := a*x^2 + b*x + c; g[x_] := Tan[x]
%t A200411 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200411 r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
%t A200411 RealDigits[r] (* A200411 *)
%Y A200411 Cf. A200338.
%K A200411 nonn,cons
%O A200411 1,2
%A A200411 _Clark Kimberling_, Nov 17 2011