A254892 - OEIS

A254892

Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally and vertically

404672, 1662439, 8115610, 51232136, 112212755, 290329276, 758297009, 1538743336, 3144214353, 6262873752, 11542342124, 21147758655, 38139458456, 66602951730, 116033750607, 199967861523, 341342073822, 584866227788

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

OFFSET

1,1

COMMENTS

Column 6 of A254894

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..176

EXAMPLE

Some solutions for n=1

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

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

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

CROSSREFS

Sequence in context: A247305 A254025 A254018 * A204764 A252626 A237510

Adjacent sequences: A254889 A254890 A254891 * A254893 A254894 A254895

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 10 2015

STATUS

approved