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 A200357 #6 Feb 07 2025 16:44:06
%S A200357 1,4,8,8,8,2,3,9,3,2,0,0,4,9,5,7,6,8,9,0,1,1,0,2,5,6,8,5,3,8,5,4,4,3,
%T A200357 7,5,7,9,3,0,7,0,5,3,2,8,0,6,8,3,5,6,9,4,3,3,1,2,5,1,0,6,7,6,4,3,4,7,
%U A200357 5,1,8,9,6,9,5,9,6,9,1,2,0,1,4,1,8,5,6,7,1,2,7,9,4,3,3,2,9,7,3
%N A200357 Decimal expansion of least x>0 satisfying x^2+4x+4=tan(x).
%C A200357 See A200338 for a guide to related sequences. The Mathematica program includes a graph.
%e A200357 x=1.48882393200495768901102568538544375793070...
%t A200357 a = 1; b = 4; c = 4;
%t A200357 f[x_] := a*x^2 + b*x + c; g[x_] := Tan[x]
%t A200357 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200357 r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
%t A200357 RealDigits[r] (* A200357 *)
%Y A200357 Cf. A200338.
%K A200357 nonn,cons
%O A200357 1,2
%A A200357 _Clark Kimberling_, Nov 17 2011