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


(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A292573 Least Lucas-Carmichael number whose Dedekind psi value is an n-th power. 3

%I #19 May 11 2024 12:00:15

%S 399,935,8855,935,191807,31535,2376401921999,287432495,3512071871,

%T 443155187061431999,269174015,7187117143679,13153784862132539999,

%U 16794805460009764607,12239445970372607,308403604421150344874999,1940371455953001599,22735742424704664191,193426182224210221055,2674275760170030054482343935

%N Least Lucas-Carmichael number whose Dedekind psi value is an n-th power.

%C There are no other terms below 10^12.

%H Max Alekseyev, <a href="/A292573/b292573.txt">Table of n, a(n) for n = 1..40</a>

%e psi(8855) = 24^3 while the psi values of smaller Lucas-Carmichael numbers are not cubes, therefore a(3) = 8855.

%Y Cf. A001615, A006972, A290805, A292571, A292572.

%K nonn

%O 1,1

%A _Amiram Eldar_, Sep 19 2017

%E a(7),a(10),a(12)-a(26) from _Max Alekseyev_, May 01 2024

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 26 08:09 EDT 2024. Contains 372807 sequences. (Running on oeis4.)