A219348 Number of n X n arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 n X n array

2, 2, 8, 35, 247, 2482, 39967, 1086910, 54162362, 4835495936

Offset

1,1

Comments

Diagonal of A219354

Links

Table of n, a(n) for n=1..10.

Example

Some solutions for n=3
..0..0..1....1..1..1....0..0..1....0..0..1....0..0..0....0..0..0....0..0..0
..0..0..1....1..1..1....0..0..1....0..0..0....0..0..0....0..0..0....0..0..0
..1..1..1....1..1..1....0..0..1....0..0..0....0..0..0....1..0..0....0..0..1

Crossrefs

Sequence in context: A226585 A057132 A121197 * A009543 A102647 A318869

Adjacent sequences: A219345 A219346 A219347 * A219349 A219350 A219351

Keyword

nonn

Author

R. H. Hardin Nov 18 2012

Status

approved