A258908 Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally and vertically

914112, 14722533, 279149887, 5661517795, 100897843080, 1832394625108, 33594417416223, 594433786098630, 10434404156623917, 182812784117521839, 3173210306713443134, 54680520979784891870

Offset

1,1

Comments

Column 6 of A258910

Links

Table of n, a(n) for n=1..12.

Example

Some solutions for n=1
..0..0..0..0..1..0..1..0....0..0..0..0..0..0..0..0....0..0..0..0..0..1..1..0
..0..0..0..0..1..1..1..0....1..0..1..0..0..0..0..1....1..1..1..0..1..1..1..1
..0..1..0..1..1..1..0..1....0..0..0..0..0..1..1..0....0..0..0..0..0..0..0..0

Crossrefs

Cf. A258910

Sequence in context: A273356 A253991 A253998 * A259012 A259005 A256903

Adjacent sequences: A258905 A258906 A258907 * A258909 A258910 A258911

Keyword

nonn

Author

R. H. Hardin, Jun 14 2015

Status

approved