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 A200360 #8 Feb 07 2025 16:44:06
%S A200360 1,4,1,6,4,9,7,8,3,4,1,7,8,0,0,1,3,0,2,3,8,7,9,2,6,6,8,6,2,7,1,0,0,2,
%T A200360 9,1,7,7,9,8,4,0,3,9,5,7,6,9,1,4,6,0,4,0,7,0,7,5,6,3,9,8,0,6,1,4,9,1,
%U A200360 8,4,9,2,3,4,8,3,5,0,6,8,1,8,1,1,8,9,5,5,2,8,2,4,8,0,2,9,1,6,1,5,6,6,5
%N A200360 Decimal expansion of least x>0 satisfying 2*x^2+x+1=tan(x).
%C A200360 See A200338 for a guide to related sequences. The Mathematica program includes a graph.
%e A200360 x=1.41649783417800130238792668627100291779840...
%t A200360 a = 2; b = 1; c = 1;
%t A200360 f[x_] := a*x^2 + b*x + c; g[x_] := Tan[x]
%t A200360 Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
%t A200360 r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
%t A200360 RealDigits[r] (* A200360 *)
%Y A200360 Cf. A200338.
%K A200360 nonn,cons
%O A200360 1,2
%A A200360 _Clark Kimberling_, Nov 17 2011