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 A201297 #11 Jan 30 2025 15:48:26
%S A201297 1,6,9,5,4,8,3,1,1,8,3,6,4,6,2,3,4,8,8,6,8,9,5,6,8,1,6,5,1,3,3,5,7,9,
%T A201297 1,8,5,0,9,3,6,3,4,4,7,5,7,1,1,4,0,3,5,8,6,6,3,6,4,9,3,5,8,3,1,6,0,7,
%U A201297 0,1,5,2,1,3,0,2,4,7,9,3,9,1,9,7,0,3,3,4,8,7,0,2,7,4,4,5,9,3,3
%N A201297 Decimal expansion of x satisfying x^2 - 3 = cot(x) and 0 < x < Pi.
%C A201297 See A201280 for a guide to related sequences. The Mathematica program includes a graph.
%H A201297 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%e A201297 1.695483118364623488689568165133579185093634...
%t A201297 a = 1; c = -3;
%t A201297 f[x_] := a*x^2 + c; g[x_] := Cot[x]
%t A201297 Plot[{f[x], g[x]}, {x, 0, Pi}, {AxesOrigin -> {0, 0}}]
%t A201297 r = x /. FindRoot[f[x] == g[x], {x, 1.6, 1.7}, WorkingPrecision -> 110]
%t A201297 RealDigits[r] (* A201297 *)
%Y A201297 Cf. A201280.
%K A201297 nonn,cons
%O A201297 1,2
%A A201297 _Clark Kimberling_, Nov 29 2011