A253876 - OEIS

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A253876

Number of (6+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally

3825920, 195774608, 8536982016, 423305690976, 19275379654400, 896906647300128, 41030428849264384, 1887413006979783456, 86314166915619122688, 3965384865347092708640, 181806009134288305420032

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Row 6 of A253871

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..133

EXAMPLE

Some solutions for n=1

..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A185533 A206413 A253869 * A253542 A210266 A036474

Adjacent sequences: A253873 A253874 A253875 * A253877 A253878 A253879

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 17 2015

STATUS

approved