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 A200395 #6 Feb 07 2025 16:44:07
%S A200395 1,4,8,8,4,1,6,3,4,3,2,9,7,6,7,3,1,8,7,0,2,3,8,9,2,2,2,9,5,2,0,9,0,8,
%T A200395 2,7,8,6,2,9,4,3,4,5,2,1,0,3,5,7,7,4,2,9,6,9,5,6,2,2,9,5,0,4,0,7,8,1,
%U A200395 1,0,6,7,3,8,2,4,8,6,6,6,4,0,5,2,7,4,5,4,3,2,0,0,7,3,6,6,4,6,8
%N A200395 Decimal expansion of least x>0 satisfying 3*x^2+3*x+1=tan(x).
%C A200395 See A200338 for a guide to related sequences. The Mathematica program includes a graph.
%e A200395 x=1.488416343297673187023892229520908278629434521...
%t A200395 a = 3; b = 3; c = 1;
%t A200395 f[x_] := a*x^2 + b*x + c; g[x_] := Tan[x]
%t A200395 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200395 r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
%t A200395 RealDigits[r] (* A200395 *)
%Y A200395 Cf. A200338.
%K A200395 nonn,cons
%O A200395 1,2
%A A200395 _Clark Kimberling_, Nov 17 2011