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Template:Sequence of the Day for July 23
From OeisWiki
Intended for: July 23, 2012
Timetable
- First draft entered by Alonso del Arte on July 22, 2011 ✓
- Draft reviewed by Daniel Forgues on July 23, 2011 ✓
- Draft to be approved by June 23, 2012
Yesterday's SOTD * Tomorrow's SOTD |
The line below marks the end of the <noinclude> ... </noinclude> section.
a (1) = 2 |
n ≥ 2 |
a (n) |
1 +
a (k) |
- { 2, 3, 7, 43, 13, 53, 5, 6221671, ... }
The first four terms coincide with the Sylvester sequence (where each term is the product of all preceding terms plus 1) (A000058), a [thus strictly increasing] infinite coprime sequence whose terms may be prime or composite.