A202886 Number of nX5 0..2 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.

51, 13345, 2223723, 348151747, 56006562037, 9024909392725, 1452080571954205, 233641209300452607, 37595413242729744773, 6049464276674659581373, 973416350404566342317495, 156632059367518718442398187

Offset

1,1

Links

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

Example

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

Crossrefs

Column 5 of A202889.

Sequence in context: A206395 A160475 A241332 * A223059 A208861 A208869

Adjacent sequences: A202883 A202884 A202885 * A202887 A202888 A202889

Keyword

nonn

Author

R. H. Hardin, Dec 25 2011

Status

approved