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A184062 Number of (n+1)X(n+1) 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 0
7, 16, 130, 1918, 56723, 2663589, 262752720, 52431215293, 22708430287929, 21448555991084059 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A184071

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for 4X4

..0..0..1..1....0..0..1..1....0..0..1..1....0..1..1..1....0..0..1..1

..0..1..0..1....0..1..0..0....0..1..0..1....1..0..0..0....0..1..0..1

..0..1..1..1....1..0..0..1....0..1..1..1....1..0..1..1....0..1..1..1

..1..0..0..0....1..1..1..0....1..1..0..0....1..1..0..0....1..0..1..1

...

...1..2..3.......1..2..2.......1..2..3.......2..2..2.......1..2..3...

...2..3..3.......2..1..1.......2..3..3.......2..1..2.......2..3..3...

...2..2..2.......3..2..2.......3..3..2.......3..2..2.......2..3..4...

CROSSREFS

Sequence in context: A029498 A181777 A129422 * A101122 A090535 A107778

Adjacent sequences:  A184059 A184060 A184061 * A184063 A184064 A184065

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 09 2011

STATUS

approved

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Last modified June 20 19:36 EDT 2019. Contains 324234 sequences. (Running on oeis4.)