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 A201401 #10 Jan 30 2025 15:32:28
%S A201401 1,4,4,6,9,2,5,2,6,4,8,5,3,0,3,9,2,2,3,8,8,2,5,8,9,8,8,1,4,2,8,4,9,2,
%T A201401 1,8,1,0,5,7,9,6,4,9,6,2,1,4,2,1,7,7,5,1,4,1,7,2,7,6,0,1,6,3,3,5,8,2,
%U A201401 4,6,2,0,2,5,5,4,2,9,0,8,4,3,8,5,8,1,7,4,0,3,5,0,2,6,9,5,6,0,8
%N A201401 Decimal expansion of x satisfying x^2 + 6 = sec(x) and 0 < x < Pi.
%C A201401 See A201397 for a guide to related sequences. The Mathematica program includes a graph.
%H A201401 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%e A201401 1.446925264853039223882589881428492181...
%t A201401 a = 1; c = 6;
%t A201401 f[x_] := a*x^2 + c; g[x_] := Sec[x]
%t A201401 Plot[{f[x], g[x]}, {x, 0, Pi}, {AxesOrigin -> {0, 0}}]
%t A201401 r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
%t A201401 RealDigits[r] (* A201401 *)
%Y A201401 Cf. A201397.
%K A201401 nonn,cons
%O A201401 1,2
%A A201401 _Clark Kimberling_, Dec 01 2011