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 A344249 #5 May 13 2021 13:48:40
%S A344249 1,5,25,140,625,3250,15625,78785,390950,1956250,9765625,48847250,
%T A344249 244140625,1220781250,6103531250,30517978570,152587890625,
%U A344249 762941486000,3814697265625,19073496181250,95367432031250,476837207031250,2384185791015625,11920929201625875,59604644775586250
%N A344249 Dirichlet g.f.: Product_{k>=2} 1 / (1 - k^(-s))^(5^(k-1)).
%Y A344249 Cf. A001055, A050367, A329800, A344247, A344248, A344250, A344251, A344252, A344253.
%K A344249 nonn
%O A344249 1,2
%A A344249 _Ilya Gutkovskiy_, May 12 2021