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 A308571 #20 Jun 16 2019 17:32:24
%S A308571 1,17,19684,4295032833,298023223876953126,
%T A308571 10314424798640630250188424914,
%U A308571 256923577521058878088611477224235621321608,6277101735386680764176071790128604879584176795969512275969
%N A308571 a(n) = sigma_{n^2}(n).
%H A308571 Seiichi Manyama, <a href="/A308571/b308571.txt">Table of n, a(n) for n = 1..26</a>
%F A308571 a(n) ~ n^(n^2). - _Vaclav Kotesovec_, Jun 08 2019
%t A308571 Table[DivisorSigma[n^2, n], {n, 1, 10}] (* _Vaclav Kotesovec_, Jun 08 2019 *)
%o A308571 (PARI) {a(n) = sigma(n, n^2)}
%Y A308571 Diagonal of A308569.
%Y A308571 Cf. A308670.
%K A308571 nonn
%O A308571 1,2
%A A308571 _Seiichi Manyama_, Jun 08 2019