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 A200386 #8 Feb 07 2025 16:44:07
%S A200386 1,4,7,6,1,7,8,8,3,0,6,4,3,9,0,2,3,9,9,8,9,9,2,5,6,9,1,7,2,9,9,8,3,3,
%T A200386 2,0,3,3,6,9,0,0,6,1,2,6,5,0,3,4,3,1,4,4,0,1,2,5,6,9,9,6,4,2,4,6,4,6,
%U A200386 9,4,3,2,8,2,6,8,8,8,3,1,2,5,3,3,4,4,8,5,8,9,6,5,5,0,6,4,2,7,0
%N A200386 Decimal expansion of least x>0 satisfying 3*x^2+4=tan(x).
%C A200386 See A200338 for a guide to related sequences. The Mathematica program includes a graph.
%e A200386 x=1.476178830643902399899256917299833203369006...
%t A200386 a = 3; b = 0; c = 4;
%t A200386 f[x_] := a*x^2 + b*x + c; g[x_] := Tan[x]
%t A200386 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200386 r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
%t A200386 RealDigits[r] (* A200386 *)
%Y A200386 Cf. A200338.
%K A200386 nonn,cons
%O A200386 1,2
%A A200386 _Clark Kimberling_, Nov 17 2011