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
!)
A145054
One-third of the number of n X n nonnegative integer arrays with every 3 X 3 subblock summing to 3.
0
55, 475, 1807, 4627, 22075, 67603, 156763, 647467
(
list
;
graph
;
refs
;
listen
;
history
;
text
;
internal format
)
OFFSET
3,1
LINKS
Table of n, a(n) for n=3..10.
CROSSREFS
Sequence in context:
A355511
A129217
A116060
*
A166839
A166827
A266035
Adjacent sequences:
A145051
A145052
A145053
*
A145055
A145056
A145057
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Sep 30 2008
STATUS
approved
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 07:22 EDT 2024. Contains 372498 sequences. (Running on oeis4.)