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 A349921 #5 Dec 18 2021 15:07:13
%S A349921 1,2,2,6,2,6,2,14,6,6,2,18,2,6,6,34,2,18,2,18,6,6,2,46,6,6,14,18,2,22,
%T A349921 2,74,6,6,6,58,2,6,6,46,2,22,2,18,18,6,2,114,6,18,6,18,2,46,6,46,6,6,
%U A349921 2,70,2,6,18,166,6,22,2,18,6,22,2,150,2,6,18
%N A349921 Dirichlet g.f.: Product_{k>=2} 1 / (1 - 2 * k^(-s)).
%Y A349921 Cf. A001055, A061142, A070933, A301830, A349922.
%K A349921 nonn
%O A349921 1,2
%A A349921 _Ilya Gutkovskiy_, Dec 05 2021