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 A198570 #9 Apr 23 2025 12:46:30
%S A198570 1,2,5,2,7,3,8,2,1,9,7,7,6,4,1,5,0,9,2,9,2,2,1,8,1,0,2,8,4,8,1,8,6,9,
%T A198570 9,4,2,4,0,1,9,2,1,0,1,4,5,7,7,4,9,3,0,6,7,8,2,5,5,4,7,2,3,3,6,9,3,6,
%U A198570 2,2,7,3,9,8,5,3,8,2,3,7,1,2,1,0,1,8,1,8,0,2,9,4,0,9,2,0,2,8,3
%N A198570 Decimal expansion of x>0 satisfying 3*x^2-3x=sin(x).
%C A198570 See A198414 for a guide to related sequences. The Mathematica program includes a graph.
%H A198570 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%e A198570 1.25273821977641509292218102848186994240192...
%t A198570 a = 3; b = -3; c = 1;
%t A198570 f[x_] := a*x^2 + b*x; g[x_] := c*Sin[x]
%t A198570 Plot[{f[x], g[x]}, {x, -.2, 1.5}]
%t A198570 r = x /. FindRoot[f[x] == g[x], {x, 1.25, 1.26}, WorkingPrecision -> 110]
%t A198570 RealDigits[r] (* A198570 *)
%Y A198570 Cf. A198414.
%K A198570 nonn,cons
%O A198570 1,2
%A A198570 _Clark Kimberling_, Oct 27 2011