Greetings from
The On-Line Encyclopedia of Integer Sequences
!
Hints
Search:
id:A088813
Displaying 1-1 of 1 results found.
page 1
Format:
long
| short |
internal
|
text
Sort: relevance |
references
|
number
Highlight: on |
off
A088813
Number of subsets of {1, ..., n} that are double-free or sum-free.
+0
3
1, 2, 4, 7, 14, 26, 43, 79, 137, 246, 398, 733, 1237, 2314, 3586, 6730, 11051, 21096, 31985, 61654, 102730, 199555, 301062, 589746, 942876, 1858881, 2793703, 5524251
(
list
;
graph
;
listen
)
page 1
Search completed in 0.002 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 3 22:15 EST 2009. Contains 170310 sequences.
AT&T Labs Research
Legal Notice
© 2009 AT&T Intellectual Property.
All Rights Reserved.
