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
!)
A147290
as a triangular array
1
1
1
1
3
1
1
4
4
1
1
5
10
5
1
1
6
21
21
6
1
1
7
41
86
41
7
1
1
8
78
337
337
78
8
1
1
9
148
1247
2486
1247
148
9
1
1
10
283
4377
15745
15745
4377
283
10
1
1
11
547
14728
88444
156442
88444
14728
547
11
1
1
A147290
as a square array
1
1
1
1
1
1
1
1
1
1
1
1
1
3
4
5
6
7
8
9
10
11
1
4
10
21
41
78
148
283
547
1
5
21
86
337
1247
4377
14728
1
6
41
337
2486
15745
88444
1
7
78
1247
15745
156442
1
8
148
4377
88444
1
9
283
14728
1
10
547
1
11
1
A147290
as an upper right triangle
1
1
1
1
1
1
1
1
1
1
1
1
1
3
4
5
6
7
8
9
10
11
1
4
10
21
41
78
148
283
547
1
5
21
86
337
1247
4377
14728
1
6
41
337
2486
15745
88444
1
7
78
1247
15745
156442
1
8
148
4377
88444
1
9
283
14728
1
10
547
1
11
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 June 11 13:44 EDT 2024. Contains 373311 sequences. (Running on oeis4.)
