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Template:Sequence of the Day for March 11
From OeisWiki
Intended for: March 11, 2013
Timetable
- First draft entered by Alonso del Arte on March 10, 2011 ✓
- Draft reviewed by Daniel Forgues on March 11, 2016 ✓
- Draft to be approved by February 11, 2013
Yesterday's SOTD * Tomorrow's SOTD
The line below marks the end of the <noinclude> ... </noinclude> section.
a (n) + a (n − 1) |
a (1) = 1 |
- { 1, 2, 3, 4, 7, 6, 5, 8, 9, 10, 13, 16, 15, 14, 17, 12, 11, ... }
Dmitry Kamenetsky wonders if every positive integer occurs, or, in other words, if this sequence is a permutation of the positive integers. According to Robert Wilson, “The answer is almost certainly yes, on probabilistic grounds.” The sequence is infinite by definition, so it is at least a permutation of an infinite subset of the positive integers.