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
!)
A188310
Number of (n+1)X9 binary arrays with every 2X2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2X2 subblock sums
0
11828, 1694376, 77627954, 4280848766, 228625683370
(
list
;
graph
;
refs
;
listen
;
history
;
text
;
internal format
)
OFFSET
1,1
COMMENTS
Column 8 of
A188311
LINKS
Table of n, a(n) for n=1..5.
EXAMPLE
Some solutions for 3X9
..0..0..0..0..1..0..0..1..1....0..0..0..1..0..0..0..1..0
..0..0..0..1..0..0..1..0..1....0..0..0..0..1..1..1..1..0
..0..1..0..0..1..1..0..1..1....0..0..1..0..1..1..1..0..1
CROSSREFS
Sequence in context:
A071519
A294661
A347144
*
A185496
A249842
A251788
Adjacent sequences:
A188307
A188308
A188309
*
A188311
A188312
A188313
KEYWORD
nonn
AUTHOR
R. H. Hardin
Mar 27 2011
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 27 08:37 EDT 2024. Contains 372850 sequences. (Running on oeis4.)