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 A200644 #8 Feb 07 2025 16:44:07
%S A200644 1,5,1,6,4,9,6,2,8,2,9,2,4,1,2,3,7,5,6,0,1,2,7,2,8,3,5,2,0,3,1,5,7,9,
%T A200644 9,8,6,5,2,6,3,3,7,8,1,3,5,1,5,9,5,1,0,2,4,6,2,3,9,5,4,7,5,8,3,6,1,7,
%U A200644 1,8,0,3,8,9,5,8,4,7,1,9,0,2,7,0,8,7,4,7,6,7,8,5,4,5,5,1,2,0,0
%N A200644 Decimal expansion of least x>0 satisfying 8*x^2=tan(x).
%C A200644 See A200614 for a guide to related sequences. The Mathematica program includes a graph.
%H A200644 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%e A200644 1.516496282924123756012728352031579986526337...
%t A200644 a = 8; c = 0;
%t A200644 f[x_] := a*x^2 - c; g[x_] := Tan[x]
%t A200644 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200644 r = x /. FindRoot[f[x] == g[x], {x, 1.51, 1.52}, WorkingPrecision -> 110]
%t A200644 RealDigits[r] (* A200644 *)
%Y A200644 Cf. A200338.
%K A200644 nonn,cons
%O A200644 1,2
%A A200644 _Clark Kimberling_, Nov 20 2011