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A202454 Number of (n+2)X(n+2) binary arrays with consecutive windows of three bits considered as a binary number nondecreasing in every row and column 1
512, 1194, 3362, 10918, 38478, 141192, 528390, 1998486, 7609118, 29110180, 111787002, 430618204, 1663208690, 6438719028, 24976207182, 97056810102, 377757631038, 1472369063940, 5746130037258, 22451082059892, 87812623596642 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A202461

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..68

EXAMPLE

Some solutions for 6X6

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

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

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

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

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

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

CROSSREFS

Sequence in context: A045058 A220017 A234879 * A230543 A224651 A224644

Adjacent sequences:  A202451 A202452 A202453 * A202455 A202456 A202457

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 19 2011

STATUS

approved

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Last modified August 19 17:41 EDT 2018. Contains 313880 sequences. (Running on oeis4.)