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 A370413 #8 Mar 31 2024 08:44:59
%S A370413 3,8,0,3,0,8,9,1,5,2,3,7,5,6,2,0,1,4,0,5,8,2,5,7,4,4,9,6,8,5,4,9,9,0,
%T A370413 0,3,8,4,5,9,0,7,4,4,4,2,7,1,3,8,2,2,1,7,1,6,5,5,9,2,8,3,2,4,5,3,8,3,
%U A370413 2,4,2,4,6,0,3,6,5,2,1,5,6,9,6,6,3,7,7,3,0,8,9,8,8,6,7,1,3,6,7,3
%N A370413 Decimal expansion of Product_{k>=2} 1 / (1 - 1/k!!).
%e A370413 3.803089152375620140582574496854990038459...
%Y A370413 Cf. A006882, A247551, A369994.
%K A370413 nonn,cons
%O A370413 1,1
%A A370413 _Ilya Gutkovskiy_, Mar 30 2024