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 A198551 #8 Apr 23 2025 12:40:13
%S A198551 9,1,1,4,5,3,8,1,4,9,9,7,9,0,6,8,9,3,9,3,3,7,9,2,8,3,5,1,7,0,5,1,3,2,
%T A198551 8,0,9,3,2,4,4,2,4,1,8,4,3,8,9,3,7,4,0,2,2,0,7,2,7,3,0,6,6,9,0,4,1,5,
%U A198551 0,7,8,6,6,7,0,1,4,7,3,6,6,8,6,8,3,0,0,1,7,1,1,5,8,7,9,5,8,7,7
%N A198551 Decimal expansion of x>0 having 3*x^2-x=2*sin(x).
%C A198551 See A198414 for a guide to related sequences. The Mathematica program includes a graph.
%H A198551 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%e A198551 0.911453814997906893933792835170513280932...
%t A198551 a = 3; b = -1; c = 2;
%t A198551 f[x_] := a*x^2 + b*x; g[x_] := c*Sin[x]
%t A198551 Plot[{f[x], g[x]}, {x, -.1, 1}]
%t A198551 r = x /. FindRoot[f[x] == g[x], {x, .91, .92}, WorkingPrecision -> 110]
%t A198551 RealDigits[r] (* A198551 *)
%Y A198551 Cf. A198414.
%K A198551 nonn,cons
%O A198551 0,1
%A A198551 _Clark Kimberling_, Oct 26 2011