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 A200604 #6 Feb 07 2025 16:44:07
%S A200604 1,4,0,8,8,8,1,6,6,6,0,4,8,5,8,3,9,9,3,2,7,2,3,6,4,4,1,8,8,3,4,3,4,8,
%T A200604 8,5,8,0,9,5,2,3,6,7,5,5,6,2,6,5,4,6,8,7,5,5,9,5,5,3,9,8,2,9,2,8,9,6,
%U A200604 3,3,3,6,0,0,9,4,8,1,5,9,4,1,1,7,1,5,8,1,5,3,9,9,1,6,9,5,6,6,6
%N A200604 Decimal expansion of least x>0 satisfying 4*x^2-2*x+1=tan(x).
%C A200604 See A200338 for a guide to related sequences. The Mathematica program includes a graph.
%e A200604 x=1.408881666048583993272364418834348858095236...
%t A200604 a = 4; b = -2; c = 1;
%t A200604 f[x_] := a*x^2 + b*x + c; g[x_] := Tan[x]
%t A200604 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200604 r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
%t A200604 RealDigits[r] (* A200604 *)
%Y A200604 Cf. A200338.
%K A200604 nonn,cons
%O A200604 1,2
%A A200604 _Clark Kimberling_, Nov 19 2011