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
!)
A276890
as a triangular array
1
1
0
1
1
0
1
1
2
0
1
1
3
6
0
1
1
3
10
24
0
1
1
3
13
44
120
0
1
1
3
13
62
234
720
0
1
1
3
13
75
352
1470
5040
0
1
1
3
13
75
466
2348
10656
40320
0
1
1
3
13
75
541
3272
17880
87624
362880
0
A276890
as a square array
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
0
2
3
3
3
3
3
3
3
0
6
10
13
13
13
13
13
0
24
44
62
75
75
75
0
120
234
352
466
541
0
720
1470
2348
3272
0
5040
10656
17880
0
40320
87624
0
362880
0
A276890
as an upper right triangle
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
0
2
3
3
3
3
3
3
3
0
6
10
13
13
13
13
13
0
24
44
62
75
75
75
0
120
234
352
466
541
0
720
1470
2348
3272
0
5040
10656
17880
0
40320
87624
0
362880
0
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 13 11:18 EDT 2024. Contains 372504 sequences. (Running on oeis4.)