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 A069737 #6 Oct 15 2013 22:31:17 %S A069737 1320,3696,5520,13800,19872,22560,23688,87000,89964,366720,785808, %T A069737 1235052,1470720,8690112,45986616,46862592,78584640,142588224, %U A069737 231718968,235668528,377425920,1598249952,9518204448,12026499072,40964894160,65368504980 %N A069737 Integer quotient defining A068418 is 3. %F A069737 (Sum of proper divisors[m])/cototient[m]=3, where m is a term of A068418. %e A069737 40th term in A068418 is m=142588224, sum-of-proper-divisors[m]=294860736, cototient[m]=98286912, quotient=3=294860736/98286912, %Y A069737 Cf. A068418, A068414, A069714. %K A069737 nonn %O A069737 1,1 %A A069737 _Labos Elemer_, Apr 05 2002 %E A069737 More terms from _Labos Elemer_, Apr 22 2002 %E A069737 a(22)-a(26) from _Donovan Johnson_, May 27 2011