A253862 Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal minimum nondecreasing horizontally and vertically

20872192, 1698464064, 118920758784, 8790291559808, 612253982192000, 43112542683771520, 3019741030360821632, 211665067386720117888, 14806506494623373426048, 1037768836282199713546368

Offset

1,1

Comments

Column 7 of A253863

Links

R. H. Hardin, Table of n, a(n) for n = 1..46

Example

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

Crossrefs

Sequence in context: A356071 A254497 A254490 * A172729 A174115 A189123

Adjacent sequences: A253859 A253860 A253861 * A253863 A253864 A253865

Keyword

nonn

Author

R. H. Hardin, Jan 17 2015

Status

approved