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 A330380 #16 May 31 2021 03:25:15
%S A330380 1,9,8,4,0,6,1,3,0,3,1,1,2,7,6,7,7,6,9,1,1,5,0,4,2,7,2,6,0,1,9,4,7,4,
%T A330380 8,1,5,6,2,4,2,3,0,3,8,2,9,8,2,5,2,8,7,6,3,0,6,6,9,6,4,9,9,2,2,5,5,8,
%U A330380 3,4,1,7,4,3,3,8,8,7,6,1,2,7,3,4,9,9,1,3,6,1,2,4,8,3,3,9,3,1,1,2,8,5,1,0,4,0,4,4,9,2,4,4,7,2,3
%N A330380 Decimal expansion of the y-coordinate for the largest solution to e^x = Gamma(x+1).
%C A330380 This number is the y-coordinate of the point at which the factorial function, Gamma(x+1), begins to exceed the exponential function.
%H A330380 Robert Munafo, <a href="http://www.mrob.com/pub/math/numbers-2.html">Notable Properties of Specific Numbers</a>.
%F A330380 Equals exp(A078335).
%e A330380 x = 5.29031609311977071072...
%e A330380 y = 198.40406130311276776911...
%t A330380 RealDigits[x /. FindRoot[Gamma[Log[x] + 1] == x, {x, 200}, WorkingPrecision -> 120], 10, 115][[1]] (* _Amiram Eldar_, May 31 2021 *)
%o A330380 (PARI) \p200
%o A330380 exp(solve (x=5,6,exp(x)-gamma(x+1))) \\ _Hugo Pfoertner_, Dec 12 2019
%Y A330380 Cf. A078335.
%K A330380 nonn,cons
%O A330380 3,2
%A A330380 _Eliora Ben-Gurion_, Dec 12 2019