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 A062755 #21 Sep 04 2024 18:12:49
%S A062755 1,21,757,69905,9768751,2214363531,678223896393,282578800148737,
%T A062755 150102261281924281,100097761867442455851,81402749387125072783933,
%U A062755 79516409977044969123349715,91733330193268919533506208263
%N A062755 a(n) = sigma_n(n^2): sum of n-th powers of divisors of n^2.
%H A062755 Harry J. Smith, <a href="/A062755/b062755.txt">Table of n, a(n) for n = 1..100</a>
%t A062755 Table[DivisorSigma[n,n^2],{n,20}] (* _Harvey P. Dale_, Sep 04 2024 *)
%o A062755 (PARI) a(n)=sigma(n^2, n);
%o A062755 (Sage) [sigma(n^2,n)for n in range(1,14)] # _Zerinvary Lajos_, Jun 13 2009
%o A062755 (Maxima) makelist(divsum(n^2,n),n,1,100); /* _Emanuele Munarini_, Mar 26 2011 */
%K A062755 nonn
%O A062755 1,2
%A A062755 _Jason Earls_, Jul 15 2001