The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A006038

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A006038

Odd primitive abundant numbers.
(history; published version)

#68 by N. J. A. Sloane at Sun Nov 22 20:24:08 EST 2020

STATUS

proposed

approved

#67 by Michel Marcus at Sun Nov 22 12:58:09 EST 2020

STATUS

editing

proposed

#66 by Michel Marcus at Sun Nov 22 12:57:59 EST 2020

LINKS

Jacob Liddy, <a href="https://ideaexchange.uakron.edu/cgi/viewcontent.cgi?article=1719&context=honors_research_projects/728">An algorithm to determine all odd primitive abundant numbers with d prime divisors</a>, Honors Research Projects (2018), 728.

STATUS

approved

editing

#65 by M. F. Hasler at Tue Feb 04 14:03:42 EST 2020

STATUS

proposed

approved

#64 by M. F. Hasler at Sat Feb 01 07:01:39 EST 2020

STATUS

editing

proposed

Discussion

Sat Feb 01

13:25

Jon E. Schoenfield: No problem!  :-)

#63 by M. F. Hasler at Sat Feb 01 07:01:04 EST 2020

COMMENTS

So far, a(173) = 351351 is the only known term of A122036, i.e., which can't be written it as sum of its proper divisors > 1. - M. F. Hasler, Jan 26 2020

STATUS

proposed

editing

Discussion

Sat Feb 01

07:01

M. F. Hasler: Thanks for catching!

#62 by M. F. Hasler at Fri Jan 31 16:59:36 EST 2020

STATUS

editing

proposed

Discussion

Sat Feb 01

00:01

Jon E. Schoenfield: "which can't be written it"?  ?:-/

#61 by M. F. Hasler at Sun Jan 26 10:25:36 EST 2020

COMMENTS

So far, a(173) = 351351 is the only known term of A122036, i.e., which can't be written it as sum of its proper divisors > 1. - M. F. Hasler, Jan 26 2020

STATUS

approved

editing

#60 by N. J. A. Sloane at Thu Oct 18 10:23:14 EDT 2018

STATUS

proposed

approved

#59 by Michel Marcus at Wed Oct 17 11:32:54 EDT 2018

STATUS

editing

proposed