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 A232702 #12 Mar 05 2020 02:51:40 %S A232702 3,4,5,4,6,4,6,7,7,4,7,8,8,6,8,9,9,7,8,4,8,5,8,7,6,8,6,9,4,5,10,7,10, %T A232702 8,6,7,9,8,4,8,9,8,10,8,10,11,10,8,10,10,9,8,8,9 %N A232702 Sigma(2*m)/m for m such that sigma(2*m) is divisible by m (these m are in A227302). %o A232702 (PARI) for(n=1,10^8,s=sigma(2*n);if(s%n==0,print1(s/n,","))) \\ _Ralf Stephan_, Nov 30 2013 %Y A232702 Cf. A227302, A054030. %K A232702 nonn,more,less %O A232702 1,1 %A A232702 _Alex Ratushnyak_, Nov 28 2013 %E A232702 a(30)-a(54) from _Jinyuan Wang_, Mar 03 2020