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 A335960 #4 Jul 04 2020 01:45:46
%S A335960 1,0,3,5,1,3,7,2,8,3,3,7,3,9,2,7,8,0,2,2,7,8,7,3,5,4,9,0,4,5,5,2,6,9,
%T A335960 5,9,6,3,5,7,0,1,7,6,7,4,5,0,4,0,6,4,5,3,1,1,5,9,9,7,6,6,7,3,5,3,8,1,
%U A335960 2,6,5,5,1,4,4,0,4,6,4,8,3,7,5,3,3,2
%N A335960 Decimal expansion of the arclength for Gamma(x) for 1 < x < 2.
%C A335960 Gamma(1) = Gamma(2) = 1, and the interval (1,2) gives the portion of the graph of y = Gamma x that lies under the line y = 1, as shown by the Mathematica program.
%t A335960 r = NIntegrate[Sqrt[1 + D[Gamma[x], x]^2], {x, 1, 2}, WorkingPrecision -> 200]
%t A335960 RealDigits[r][[1]]
%t A335960 Plot[Gamma[x] - 1, {x, .5, 2.5}]
%Y A335960 Cf. A335929.
%K A335960 nonn,cons
%O A335960 1,3
%A A335960 _Clark Kimberling_, Jul 03 2020