The OEIS mourns the passing of
Jim Simons
and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A026807
as a triangular array
1
2
1
3
1
1
5
2
1
1
7
2
1
1
1
11
4
2
1
1
1
15
4
2
1
1
1
1
22
7
3
2
1
1
1
1
30
8
4
2
1
1
1
1
1
42
12
5
3
2
1
1
1
1
1
56
14
6
3
2
1
1
1
1
1
1
77
21
9
5
3
2
1
1
1
1
1
1
101
24
10
5
3
2
1
1
1
1
1
1
1
135
34
13
A026807
as a square array
1
2
3
5
7
11
15
22
30
42
56
77
101
135
1
1
2
2
4
4
7
8
12
14
21
24
34
1
1
1
2
2
3
4
5
6
9
10
13
1
1
1
1
2
2
3
3
5
5
1
1
1
1
1
2
2
3
3
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
A026807
as an upper right triangle
1
2
3
5
7
11
15
22
30
42
56
77
101
135
1
1
2
2
4
4
7
8
12
14
21
24
34
1
1
1
2
2
3
4
5
6
9
10
13
1
1
1
1
2
2
3
3
5
5
1
1
1
1
1
2
2
3
3
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
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 May 17 15:44 EDT 2024. Contains 372603 sequences. (Running on oeis4.)
