login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo

Please make a donation to keep the OEIS running. We are now in our 56th year. In the past year we added 10000 new sequences and reached almost 9000 citations (which often say "discovered thanks to the OEIS").
Other ways to donate

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

R. H. Hardin, Table of n, a(n) for n = 1..60

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

Adjacent sequences:  A184067 A184068 A184069 * A184071 A184072 A184073

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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 1 12:50 EST 2020. Contains 338833 sequences. (Running on oeis4.)