This site is supported by donations to The OEIS Foundation.
Template:Sequence of the Day for September 17
From OeisWiki
Intended for: September 17, 2011
Timetable
- First draft entered by Alonso del Arte on September 4, 2011 ✓
- Draft reviewed by Daniel Forgues on September 17, 2012 ✓
- Draft to be approved by August 17, 2011
Yesterday's SOTD * Tomorrow's SOTD |
The line below marks the end of the <noinclude> ... </noinclude> section.
n |
- { 0, − 4, 60, −1096, 19640, −352460, ... }
As is the case with many sequences derived from the Fibonacci numbers, this one can be expressed in quite a few different ways, e.g. as a sum
-
a (n) = n∑ k = 1(−1) k F (3k ) 2,
n = 0 |
-
a (n) = (−1) n
−F (6 n + 3) 10
,2 n + 1 5
to name just two.