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 A334847 #7 Sep 30 2022 20:43:36
%S A334847 2,0,3,7,6,2,2,3,5,9,8,5,7,6,7,9,4,8,8,6,1,6,2,4,5,8,4,7,4,6,7,2,5,3,
%T A334847 9,4,1,3,1,1,5,2,8,9,2,9,5,7,0,8,1,0,0,8,4,2,1,8,6,5,5,7,6,0,4,0,0,6,
%U A334847 9,3,4,6,5,2,1,3,6,3,4,5,9,3,6,0,6,0
%N A334847 Decimal expansion of arclength between (0,1) and (sqrt(3),2) on y^2 - x^2 = 1.
%e A334847 arclength = 2.03762235985767948861624584746725394131152...
%t A334847 s = Integrate[Sqrt[1 + D[Sqrt[1 + x^2], x]^2], {x, 0, Sqrt[3]}]
%t A334847 r = N[s, 200]
%t A334847 RealDigits[r][[1]]
%Y A334847 Cf. A333202, A334846.
%K A334847 nonn,cons,easy
%O A334847 1,1
%A A334847 _Clark Kimberling_, Jun 15 2020