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 A200690 #11 Feb 07 2025 16:44:07
%S A200690 1,3,3,7,6,2,8,4,7,2,7,2,8,0,0,8,4,8,8,4,7,1,5,7,8,3,8,8,4,1,8,8,4,5,
%T A200690 7,0,8,7,5,8,7,1,1,0,2,0,6,7,7,3,1,8,4,9,6,4,3,6,7,9,6,3,0,9,8,8,4,2,
%U A200690 0,5,6,8,3,5,0,3,1,7,2,3,1,3,8,2,3,8,2,1,4,8,3,6,5,6,4,0,5,6,9
%N A200690 Decimal expansion of least x>0 satisfying 6-x^2=tan(x).
%C A200690 See A200614 for a guide to related sequences. The Mathematica program includes a graph.
%H A200690 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%e A200690 1.3376284727280084884715783884188457087587110...
%t A200690 a = -1; c = 6;
%t A200690 f[x_] := a*x^2 + c; g[x_] := Tan[x]
%t A200690 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200690 r = x /. FindRoot[f[x] == g[x], {x, 1.3, 1.4}, WorkingPrecision -> 110]
%t A200690 RealDigits[r] (* A200690 *)
%Y A200690 Cf. A200338.
%K A200690 nonn,cons
%O A200690 1,2
%A A200690 _Clark Kimberling_, Nov 21 2011