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 A085961 #7 Jan 07 2020 09:07:26 %S A085961 1,4,3,4,15,6,7,8,18,20,44,12,13,28,15,32,68,18,38,20,42,44,138,24, %T A085961 150,78,54,28,174,60,31,32,132,68,140,36,74,38,39,40,164,42,258,44,90, %U A085961 138,282,48,98,150,102,104,212,54,110,56,57,174,354,60,183,124,63,128,195 %N A085961 Sigma of the least numbers k for which sigma is divisible by k (where sigma is the sum of the divisors of k, A000203(k)). %H A085961 Amiram Eldar, <a href="/A085961/b085961.txt">Table of n, a(n) for n = 1..10000</a> %F A085961 a(n) = A000203(A070982(n)). %Y A085961 Cf. A070982, A000203, A066678. %K A085961 nonn %O A085961 1,2 %A A085961 Yuval Dekel (dekelyuval(AT)hotmail.com), Aug 17 2003 %E A085961 More terms from _John W. Layman_, Aug 19 2003