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 A198543 #8 Apr 23 2025 12:37:37
%S A198543 2,4,0,3,9,6,0,8,0,1,4,4,3,6,5,3,9,5,9,1,3,2,3,7,1,7,6,6,1,7,0,7,7,6,
%T A198543 9,9,7,1,7,6,5,5,9,0,7,4,4,3,4,4,0,7,7,2,0,4,5,0,5,7,3,9,4,9,4,8,4,9,
%U A198543 9,5,4,7,4,4,1,7,0,5,1,4,0,3,0,0,5,6,3,4,8,2,9,2,2,9,5,0,0,9,4
%N A198543 Decimal expansion of x>0 having 4*x^2+3x=4*sin(x).
%C A198543 See A198414 for a guide to related sequences. The Mathematica program includes a graph.
%H A198543 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%e A198543 0.2403960801443653959132371766170776997176...
%t A198543 a = 4; b = 3; c = 4;
%t A198543 f[x_] := a*x^2 + b*x; g[x_] := c*Sin[x]
%t A198543 Plot[{f[x], g[x]}, {x, -.2, .4}]
%t A198543 r = x /. FindRoot[f[x] == g[x], {x, .24, .25}, WorkingPrecision -> 110]
%t A198543 RealDigits[r] (* A198543 *)
%Y A198543 Cf. A198414.
%K A198543 nonn,cons
%O A198543 0,1
%A A198543 _Clark Kimberling_, Oct 26 2011