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 A344265 #5 May 14 2021 06:26:39
%S A344265 1,2,4,9,16,40,64,144,262,544,1024,2148,4096,8320,16448,33060,65536,
%T A344265 131724,262144,525456,1048832,2099200,4194304,8393568,16777336,
%U A344265 33562624,67109892,134234688,268435456,536906368,1073741824,2147550392,4294971392,8590065664,17179870208
%N A344265 Dirichlet g.f.: Product_{k>=2} (1 + k^(-s))^(2^(k-1)).
%Y A344265 Cf. A045778, A050368, A329800, A344266, A344267, A344268, A344269, A344270, A344271.
%K A344265 nonn
%O A344265 1,2
%A A344265 _Ilya Gutkovskiy_, May 13 2021