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Template:Sequence of the Day for July 13
From OeisWiki
Intended for: July 13, 2012
Timetable
- First draft entered by Alonso del Arte on April 29, 2011 as an almost verbatim copy of a write-up from November 1, 2010. ✓
- Draft reviewed by Alonso del Arte on July 10, 2011 ✓
- Draft approved by Daniel Forgues on July 12, 2011 ✓
Yesterday's SOTD * Tomorrow's SOTD |
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S |
- { 6, 24, 28, 96, 126, 224, 384, 496, ... }
Also called Granville numbers after the mathematician Andrew Granville. In October 2010, William Rex Marshall offered a much clearer explanation† of these numbers as well as a few more terms to list in the sequence (which includes the familiar 2-perfect numbers of A000396).
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† William Marshall, Who understands Granville numbers?, posting to SeqFan on Oct 28 2010.