A254084 Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal maximum nondecreasing horizontally, vertically and ne-to-sw antidiagonally

512, 37961, 9231485, 7181975282, 17184949015860, 130340161010554804, 3076463598348748891236, 227190805931348173384051212, 52565635830483236304261230301048, 38007489014178178530213754490084391696

Offset

1,1

Comments

Diagonal of A254092

Links

R. H. Hardin, Table of n, a(n) for n = 1..13

Example

Some solutions for n=2
..0..0..1..0....0..1..1..0....0..0..1..0....0..1..0..0....0..0..1..0
..1..1..1..1....1..1..0..1....1..1..1..1....1..0..1..0....1..1..1..0
..0..1..1..1....0..1..0..0....0..1..0..1....0..0..0..0....0..0..1..0
..1..1..1..0....1..1..0..1....0..1..0..0....0..0..1..1....0..0..1..1

Crossrefs

Sequence in context: A253536 A254383 A253977 * A284033 A240933 A250567

Adjacent sequences: A254081 A254082 A254083 * A254085 A254086 A254087

Keyword

nonn

Author

R. H. Hardin, Jan 25 2015

Status

approved