login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A145014
Number of n X n nonnegative integer arrays with every 2 X 2 subblock summing to 4.
0
35, 259, 1059, 5395, 19091, 84499, 284451, 1180243, 3922835
(
list
;
graph
;
refs
;
listen
;
history
;
text
;
internal format
)
OFFSET
2,1
LINKS
Table of n, a(n) for n=2..10.
CROSSREFS
Sequence in context:
A113941
A067238
A267022
*
A090646
A220929
A251931
Adjacent sequences:
A145011
A145012
A145013
*
A145015
A145016
A145017
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Sep 29 2008
EXTENSIONS
Changed positive to nonnegative, added n X n. -
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 April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)