login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A004136
as a simple table
n
a(n)
1
1
2
3
3
7
4
13
5
21
6
31
7
48
8
57
9
73
10
91
11
120
12
133
13
168
14
183
15
255
16
255
17
273
18
307
[1,3,7,13,21,31,48,57,73,91,120,133,168,183,255, 255,273,307]
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 25 05:55 EDT 2024. Contains 371964 sequences. (Running on oeis4.)