A203055 Number of nX6 0..5 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor

2507, 96511488, 1938869645102, 32577032228308750, 570286671940304710894, 10124772353743869083346802, 179109172750066296411502125680, 3165197229143145150961445735709722

Offset

1,1

Comments

Column 6 of A203057

Links

R. H. Hardin, Table of n, a(n) for n = 1..20

Example

Some solutions for n=5
..0..0..5..0..4..0....2..3..0..1..0..2....0..1..4..4..3..1....2..2..4..5..2..1
..4..4..5..4..4..0....5..3..4..3..3..2....3..1..1..4..0..2....3..5..0..5..2..0
..3..3..2..3..0..3....5..3..4..2..4..2....3..1..4..4..3..2....3..5..5..2..0..2
..2..4..4..4..3..3....1..3..0..0..4..5....4..0..3..3..0..1....0..1..4..0..2..5
..3..5..5..0..0..0....2..2..5..5..4..5....4..0..4..4..5..5....2..2..4..0..4..5

Crossrefs

Sequence in context: A234790 A251858 A251854 * A031621 A212400 A215197

Adjacent sequences: A203052 A203053 A203054 * A203056 A203057 A203058

Keyword

nonn

Author

R. H. Hardin Dec 28 2011

Status

approved