login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A069737 Integer quotient defining A068418 is 3. 2

%I #6 Oct 15 2013 22:31:17

%S 1320,3696,5520,13800,19872,22560,23688,87000,89964,366720,785808,

%T 1235052,1470720,8690112,45986616,46862592,78584640,142588224,

%U 231718968,235668528,377425920,1598249952,9518204448,12026499072,40964894160,65368504980

%N Integer quotient defining A068418 is 3.

%F (Sum of proper divisors[m])/cototient[m]=3, where m is a term of A068418.

%e 40th term in A068418 is m=142588224, sum-of-proper-divisors[m]=294860736, cototient[m]=98286912, quotient=3=294860736/98286912,

%Y Cf. A068418, A068414, A069714.

%K nonn

%O 1,1

%A _Labos Elemer_, Apr 05 2002

%E More terms from _Labos Elemer_, Apr 22 2002

%E a(22)-a(26) from _Donovan Johnson_, May 27 2011

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 29 09:32 EDT 2024. Contains 371268 sequences. (Running on oeis4.)