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 A334574 #9 Jan 05 2024 02:51:35
%S A334574 2,2,8,8,3,6,9,5,1,2,8,8,5,7,8,1,6,7,0,8,6,2,9,0,5,5,6,2,0,9,9,4,2,7,
%T A334574 3,3,0,2,4,2,2,6,6,0,8,7,9,8,0,8,2,6,2,4,7,0,1,6,7,6,0,4,9,8,4,0,9,4,
%U A334574 4,3,9,4,2,0,9,2,0,0,1,1,0,4,6,5,9,7,6,8,3,3,8,5,2,9,2,3,6,4,5,9,2,1,9,6,0,0,3
%N A334574 Decimal expansion of limit when n->oo A334573(n)/n.
%H A334574 István B. Kolossváry and István T. Kolossváry, <a href="https://doi.org/10.1016/j.jnt.2021.09.010">Distance between natural numbers based on their prime signature</a>, Journal of Number Theory, Vol. 234 (2022), pp. 120-139; <a href="https://arxiv.org/abs/2005.02027">arXiv preprint</a>, arXiv:2005.02027 [math.NT], 2020-2021.
%F A334574 Equals 1 + Sum_{k>=2} (1 - Product_{p prime} (1 - 2/p^k)). - _Amiram Eldar_, Jan 05 2024
%e A334574 2.2883695...
%o A334574 (PARI) 1 + sumpos(k = 2, 1 - prodeulerrat(1 - 2/p^k)) \\ _Amiram Eldar_, Jan 05 2024
%Y A334574 Cf. A334572, A334573.
%K A334574 nonn,cons
%O A334574 1,1
%A A334574 _Michel Marcus_, May 06 2020
%E A334574 More terms from _Amiram Eldar_, Jan 05 2024