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.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A184070 Number of (n+1)X9 binary arrays with rows and columns in nondecreasing order and with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one 1
160, 529, 5800, 126978, 4136338, 116690636, 2770530466, 52431215293, 815858815795, 10481797492543, 110945811109376, 969268941798697, 7097493179383915, 43883325663965862, 231088111095174435 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 8 of A184071
LINKS
EXAMPLE
Some solutions for 3X9
..0..0..0..0..1..1..1..1..1....0..0..1..1..1..1..1..1..1
..0..0..1..1..0..0..0..1..1....0..1..0..0..0..0..0..1..1
..0..1..0..1..1..1..1..1..1....0..1..1..1..1..1..1..0..1
...
...0..1..2..2..2..2..3..4.......1..2..2..2..2..2..3..4...
...1..2..3..3..2..2..3..4.......2..3..2..2..2..2..2..3...
CROSSREFS
Sequence in context: A138854 A133530 A278129 * A278122 A233917 A233910
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 09 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 17 19:53 EDT 2024. Contains 372607 sequences. (Running on oeis4.)