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 A200641 #8 Feb 07 2025 16:44:07
%S A200641 1,4,8,4,9,1,1,7,2,5,4,2,5,8,9,4,5,5,7,9,6,7,6,2,3,6,4,1,7,8,4,7,2,8,
%T A200641 0,8,3,2,8,1,7,5,4,7,2,0,3,6,3,7,8,2,4,0,1,7,8,5,5,8,9,2,2,1,4,7,5,8,
%U A200641 2,0,2,7,0,3,1,1,8,3,5,3,2,7,4,8,5,1,3,0,2,4,8,3,7,8,5,6,0,4,6
%N A200641 Decimal expansion of least x>0 satisfying 3*x^2+5=tan(x).
%C A200641 See A200614 for a guide to related sequences. The Mathematica program includes a graph.
%H A200641 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%e A200641 1.484911725425894557967623641784728083281754...
%t A200641 a = 3; c = -5;
%t A200641 f[x_] := a*x^2 - c; g[x_] := Tan[x]
%t A200641 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200641 r = x /. FindRoot[f[x] == g[x], {x, 1.48, 1.49}, WorkingPrecision -> 110]
%t A200641 RealDigits[r] (* A200641 *)
%Y A200641 Cf. A200338.
%K A200641 nonn,cons
%O A200641 1,2
%A A200641 _Clark Kimberling_, Nov 20 2011