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 A168132 #13 Jan 13 2025 04:10:36
%S A168132 1,2,7,9,14,52,149,213,673,1778,3653,6831,9868,570972,2835107,3613594,
%T A168132 47211979,60418265,99909506,1701207282,4587170542,10955668024,
%U A168132 29031152874,114018751785,813149731047
%N A168132 Numbers m = Sum_{k=1..n} sigma(k)/k such that Sum_{k=1..n} sigma(k)/k is an integer for any k.
%C A168132 Numbers m = A024916(k)/k such that A024916(k)/k is an integer for any k. If a(14) exist must be bigger than 82000.
%C A168132 Corresponding values of k, and Sum_{k=1..n} sigma(k) are given in A056550 and A168133. [_Jaroslav Krizek_, Nov 21 2009]
%e A168132 Number a(3) = 7 is in sequence because A024916(8)/8 = 56/8 = 7 is an integer for k = 8.
%K A168132 nonn,more
%O A168132 1,2
%A A168132 _Jaroslav Krizek_, Nov 18 2009, Dec 04 2009
%E A168132 a(14)-a(25) from _Donovan Johnson_, Jun 16 2011