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 A200359 #6 Feb 07 2025 16:44:06
%S A200359 1,4,3,0,7,5,7,4,5,7,5,9,3,5,3,5,4,4,3,5,1,5,4,9,3,9,2,8,4,7,3,2,3,8,
%T A200359 6,5,9,6,4,0,0,4,5,0,5,7,9,1,8,9,4,7,0,8,8,2,0,0,6,2,1,2,1,0,5,6,7,2,
%U A200359 3,6,7,5,6,1,2,1,2,3,8,9,2,7,4,3,3,6,7,2,9,7,3,2,5,8,9,1,4,7,9
%N A200359 Decimal expansion of least x>0 satisfying 2*x^2+3=tan(x).
%C A200359 See A200338 for a guide to related sequences. The Mathematica program includes a graph.
%e A200359 x=1.4307574575935354435154939284732386596400...
%t A200359 a = 2; b = 0; c = 3;
%t A200359 f[x_] := a*x^2 + b*x + c; g[x_] := Tan[x]
%t A200359 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200359 r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
%t A200359 RealDigits[r] (* A200359 *)
%Y A200359 Cf. A200338.
%K A200359 nonn,cons
%O A200359 1,2
%A A200359 _Clark Kimberling_, Nov 17 2011