login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A005856
as a simple table
n
a(n)
8
1
9
1
10
1
11
1
12
1
13
2
14
2
15
3
16
4
17
6
18
9
19
12
20
17
21
21
[1,1,1,1,1,2,2,3,4,6,9,12,17,21]
Lookup
|
Welcome
|
Wiki
|
Register
|
Music
|
Plot 2
|
Demos
|
Index
|
Browse
|
More
|
WebCam
Contribute new seq. or comment
|
Format
|
Style Sheet
|
Transforms
|
Superseeker
|
Recents
The OEIS Community
| Maintained by
The OEIS Foundation Inc.
License Agreements, Terms of Use, Privacy Policy.
.
Last modified April 23 10:21 EDT 2024. Contains 371905 sequences. (Running on oeis4.)