The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A065330

(Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A065330

a(n) = max { k | gcd(n, k) = k and gcd(k, 6) = 1 }.
(history; published version)

#60 by Michael De Vlieger at Sat Oct 22 08:05:54 EDT 2022

STATUS

reviewed

approved

#59 by Joerg Arndt at Sat Oct 22 07:21:33 EDT 2022

STATUS

proposed

reviewed

#58 by Joerg Arndt at Sat Oct 22 07:21:30 EDT 2022

STATUS

editing

proposed

#57 by Joerg Arndt at Sat Oct 22 07:21:28 EDT 2022

FORMULA

Sum_{k=1..n} a(k) ~ (1/4) * n^2. = _- _Amiram Eldar_, Oct 22 2022

STATUS

reviewed

editing

#56 by Joerg Arndt at Sat Oct 22 07:21:16 EDT 2022

STATUS

proposed

reviewed

#55 by Amiram Eldar at Sat Oct 22 03:13:18 EDT 2022

STATUS

editing

proposed

#54 by Amiram Eldar at Sat Oct 22 02:54:09 EDT 2022

FORMULA

Sum_{k=1..n} a(k) ~ (1/4) * n^2. = Amiram Eldar, Oct 22 2022

#53 by Amiram Eldar at Sat Oct 22 02:53:34 EDT 2022

COMMENTS

a(n) * A065331(n) = n.

FORMULA

a(n) * A065331(n) = n.

STATUS

approved

editing

#52 by Charles R Greathouse IV at Thu Sep 08 08:45:04 EDT 2022

PROG

(MAGMAMagma) [n div Gcd(n, 6^n): n in [1..100]]; // Vincenzo Librandi, Feb 09 2016

Discussion

Thu Sep 08

08:45

OEIS Server: https://oeis.org/edit/global/2944

#51 by Joerg Arndt at Mon Jul 17 02:23:10 EDT 2017

STATUS

reviewed

approved