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 A200705 #8 Feb 07 2025 16:44:07
%S A200705 2,6,9,1,0,9,6,7,1,2,7,8,9,4,6,5,6,6,5,2,2,4,7,0,6,4,8,2,1,9,0,2,1,0,
%T A200705 5,8,8,3,5,6,2,1,2,2,4,0,2,4,2,2,0,3,0,8,0,4,9,1,0,9,0,4,2,1,6,2,3,8,
%U A200705 2,2,1,7,3,9,0,8,7,4,5,0,3,9,0,8,0,3,0,7,1,4,4,5,9,5,3,2,3,4,5
%N A200705 Decimal expansion of least x>0 satisfying 1-10*x^2=tan(x).
%C A200705 See A200614 for a guide to related sequences. The Mathematica program includes a graph.
%H A200705 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%e A200705 0.2691096712789465665224706482190210588356212...
%t A200705 a = -10; c = 1;
%t A200705 f[x_] := a*x^2 + c; g[x_] := Tan[x]
%t A200705 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200705 r = x /. FindRoot[f[x] == g[x], {x, .2, .3}, WorkingPrecision -> 110]
%t A200705 RealDigits[r] (* A200710 *)
%Y A200705 Cf. A200338.
%K A200705 nonn,cons
%O A200705 0,1
%A A200705 _Clark Kimberling_, Nov 21 2011