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 A332634 #5 Jun 15 2020 13:38:47
%S A332634 7,8,0,1,3,1,4,2,8,2,8,0,8,4,9,3,3,3,5,5,9,9,8,1,8,7,2,2,1,7,7,3,3,0,
%T A332634 6,3,6,8,7,5,2,2,6,5,8,8,3,5,5,4,3,4,3,8,4,0,6,7,2,2,8,3,4,5,9,9,5,8,
%U A332634 0,2,7,7,0,0,1,1,0,1,1,2,7,8,2,5,2,2
%N A332634 Decimal expansion of arclength between (0,0) and (Pi/6,1) on y = tan x.
%e A332634 arclength = 0.780131428280849333559981872217733063687522...
%t A332634 s = Integrate[Sqrt[1 + D[Tan[x], x]^2], {x, 0, Pi/6}]
%t A332634 r = N[s, 200]
%t A332634 RealDigits[r][[1]]
%Y A332634 Cf. A333202, A332633, A334843
%K A332634 nonn,cons,easy
%O A332634 0,1
%A A332634 _Clark Kimberling_, Jun 15 2020