login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A228107
as a triangular array
1
1
1
1
1
2
1
1
2
3
1
1
2
3
4
1
1
3
4
5
8
1
1
3
5
6
10
12
1
1
3
6
8
13
17
22
A228107
as a square array
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
3
3
3
3
3
4
5
6
4
5
6
8
8
10
13
12
17
22
A228107
as an upper right triangle
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
3
3
3
3
3
4
5
6
4
5
6
8
8
10
13
12
17
22
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 19 16:52 EDT 2024. Contains 371794 sequences. (Running on oeis4.)