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 A200351 #6 Feb 07 2025 16:44:06
%S A200351 1,4,5,3,3,0,4,1,5,8,5,7,4,3,3,6,7,9,5,3,0,4,0,2,9,6,2,5,8,3,8,5,5,0,
%T A200351 8,8,6,8,8,6,6,0,5,7,0,7,5,5,8,7,5,9,8,4,0,0,7,0,0,5,3,4,8,7,1,0,2,2,
%U A200351 1,7,1,2,6,6,3,4,4,4,9,4,3,9,8,8,3,6,1,3,2,7,3,5,2,9,6,6,8,7,9
%N A200351 Decimal expansion of least x>0 satisfying x^2+3x+2=tan(x).
%C A200351 See A200338 for a guide to related sequences. The Mathematica program includes a graph.
%e A200351 x=1.453304158574336795304029625838550886...
%t A200351 a = 1; b = 3; c = 2;
%t A200351 f[x_] := a*x^2 + b*x + c; g[x_] := Tan[x]
%t A200351 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200351 r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
%t A200351 RealDigits[r] (* A200351 *)
%Y A200351 Cf. A200338.
%K A200351 nonn,cons
%O A200351 1,2
%A A200351 _Clark Kimberling_, Nov 17 2011