A254815 Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of four medians of central row, central column, diagonal and antidiagonal nondecreasing horizontally and vertically

55904, 522294, 5525547, 52855290, 463784139, 4043573364, 32502418874, 255406348232, 1922225812231, 14057717291118, 99852950031456, 692915758685260, 4706042894458649, 31391244903621553, 206076434294104849

Offset

1,1

Comments

Column 4 of A254819

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A206081 A254508 A254515 * A229436 A022224 A230336

Adjacent sequences: A254812 A254813 A254814 * A254816 A254817 A254818

Keyword

nonn

Author

R. H. Hardin, Feb 08 2015

Status

approved