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 A200693 #8 Feb 07 2025 16:44:07
%S A200693 1,4,2,8,1,0,5,1,9,3,9,3,4,3,8,0,7,4,9,6,9,9,5,8,6,0,5,3,7,1,3,8,8,0,
%T A200693 6,8,6,8,4,6,8,5,5,4,3,1,1,1,4,3,9,5,2,6,2,3,4,1,3,0,3,3,5,3,1,6,9,1,
%U A200693 5,3,5,2,3,5,7,8,6,3,7,5,1,3,6,4,0,7,0,3,8,4,1,7,1,2,7,5,8,0,5
%N A200693 Decimal expansion of least x>0 satisfying 9-x^2=tan(x).
%C A200693 See A200614 for a guide to related sequences. The Mathematica program includes a graph.
%H A200693 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%e A200693 1.4281051939343807496995860537138806868468554311...
%t A200693 a = -1; c = 9;
%t A200693 f[x_] := a*x^2 + c; g[x_] := Tan[x]
%t A200693 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200693 r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
%t A200693 RealDigits[r] (* A200693 *)
%Y A200693 Cf. A200338.
%K A200693 nonn,cons
%O A200693 1,2
%A A200693 _Clark Kimberling_, Nov 21 2011