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 A330595 #16 Oct 26 2020 06:10:06
%S A330595 1,7,4,8,9,3,2,9,9,7,8,4,3,2,4,5,3,0,3,0,3,3,9,0,6,9,9,7,6,8,5,1,1,4,
%T A330595 8,0,2,2,5,9,8,8,3,4,9,3,5,9,5,4,8,0,8,9,7,2,7,3,6,6,2,1,4,4,0,8,4,8,
%U A330595 4,9,7,9,1,3,0,0,1,0,1,3,1,4,0,6,8,1,7,8,1,3,0,2,6,4,5,5,1,0,8,9,7,0,5,9,1
%N A330595 Decimal expansion of Product_{primes p} (1 + 1/p^2 + 1/p^3).
%F A330595 Equals Sum_{n>=1} 1/A338325(n). - _Amiram Eldar_, Oct 26 2020
%e A330595 1.748932997843245303033906997685114802259883493595480897273662144084849...
%t A330595 Do[Print[N[Exp[-Sum[q = Expand[(-p^2 - p^3)^j]; Sum[PrimeZetaP[Exponent[q[[k]], p]] * Coefficient[q[[k]], p^Exponent[q[[k]], p]], {k, 1, Length[q]}]/j, {j, 1, t}]], 110]], {t, 20, 200, 20}]
%o A330595 (PARI) prodeulerrat(1 + 1/p^2 + 1/p^3) \\ _Vaclav Kotesovec_, Sep 19 2020
%Y A330595 Cf. A065464, A065473, A065476, A160889, A328017, A330594, A330596, A338325.
%K A330595 nonn,cons
%O A330595 1,2
%A A330595 _Vaclav Kotesovec_, Dec 19 2019