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 A308713 #8 Jun 20 2019 02:56:37
%S A308713 5,7,9,8,0,3,2,5,2,2,8,1,6,2,9,5,3,1,3,2,4,7,1,6,1,1,2,1,2,0,9,2,6,6,
%T A308713 8,2,2,5,5,7,3,2,6,5,3,6,6,2,3,6,2,2,6,8,3,4,4,1,0,1,9,7,6,6,8,6,9,4,
%U A308713 9,2,2,3,2,9,5,0,6,7,3,2,9,4,1,6,4,6,1,6,1,3,0,2,6,6,4,0,5,9,1,3,9,3,2,9,3,1,7,7,8,6,4,8,2,2,4,0,6,1,2
%N A308713 Decimal expansion of sqrt(2)*sinh(sqrt(2)*Pi)/(33*Pi).
%F A308713 Equals Product_{k>=2} (1 - 1/(k*(k + 1)*(k + 2)/6)).
%F A308713 Equals Product_{k>=2} (1 - 1/A000292(k)).
%e A308713 0.579803252281629531324716112120926682255732653662...
%t A308713 RealDigits[Sqrt[2] Sinh[Sqrt[2] Pi]/(33 Pi), 10, 119][[1]]
%o A308713 (PARI) sqrt(2)*sinh(sqrt(2)*Pi)/(33*Pi) \\ _Michel Marcus_, Jun 20 2019
%Y A308713 Cf. A000292, A308666, A308714.
%K A308713 nonn,cons
%O A308713 0,1
%A A308713 _Ilya Gutkovskiy_, Jun 19 2019