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Template:Sequence of the Day for July 14
From OeisWiki
Intended for: July 14, 2012
Timetable
- First draft entered by Alonso del Arte on May 23, 2011 ✓
- Draft reviewed by May 14, 2012
- Draft approved by June 14, 2012
Yesterday's SOTD * Tomorrow's SOTD |
The following line marks the end of the <noinclude> ... </noinclude> section.
a (1) = 7 |
a (n) = a (n − 1) + gcd (n, a (n − 1)), n > 1 |
- { 7, 8, 9, 10, 15, 18, 19, 20, 21, 22, 33, 36, 37, 38, ... }
The difference between two consecutive terms is a noncomposite number (either the unit 1, or a prime number).