Greetings from
The On-Line Encyclopedia of Integer Sequences
!
Hints
Search:
id:A000253
Displaying 1-1 of 1 results found.
page 1
Format:
long
| short |
internal
|
text
Sort: relevance |
references
|
number
Highlight: on |
off
A000253
a(n) = 2a(n-1)-a(n-2)+a(n-3)+2^(n-1).
+0
1
0, 1, 4, 11, 27, 63, 142, 312, 673, 1432, 3015, 6295, 13055, 26926, 55284, 113081, 230572, 468883, 951347, 1926527, 3894878, 7863152, 15855105, 31936240, 64269135, 129234351, 259690239, 521524126, 1046810092
(
list
;
graph
;
listen
)
page 1
Search completed in 0.001 seconds
Lookup
|
Welcome
|
Find friends
|
Music
|
Plot 2
|
Demos
|
Index
|
Browse
|
More
|
WebCam
Contribute new seq. or comment
|
Format
|
Transforms
|
Puzzles
|
Hot
|
Classics
More pages
|
Superseeker
|
Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 17 23:40 EST 2009. Contains 171025 sequences.
AT&T Labs Research
Legal Notice
© 2009 AT&T Intellectual Property.
All Rights Reserved.
