The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)
A077561 Indices of terms of A025487 which divide the terms. Numbers k such that A025487(k) is a multiple of k. 2

%I #16 Dec 30 2020 03:35:30

%S 1,2,6,8,12,16,20,24,32,45,48,66,84,90,96,108,120,140,144,150,154,162,

%T 168,175,180,192,198,200,216,220,224,240,252,264,280,288,300,315,324,

%U 336,360,375,390,396,432,486,504,525,570,576,594

%N Indices of terms of A025487 which divide the terms. Numbers k such that A025487(k) is a multiple of k.

%H Amiram Eldar, <a href="/A077561/b077561.txt">Table of n, a(n) for n = 1..10000</a> (terms 1..3762 from Charlie Neder)

%Y Cf. A025487, A077562.

%K nonn

%O 1,2

%A _Amarnath Murthy_, Nov 10 2002

%E More terms from _Ray Chandler_, Aug 24 2003

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 May 18 03:36 EDT 2024. Contains 372618 sequences. (Running on oeis4.)