A203259 Number of nX5 0..7 arrays with every nonzero element less than or equal to some NW, E or S neighbor

1, 1224456, 13994382224, 71719101346406, 314892411482182670, 1502693979789746374595, 7471149797595047377690310, 36686200005797234162918342173, 178609801178065499935878250539473

Offset

1,2

Comments

Column 5 of A203262

Links

R. H. Hardin, Table of n, a(n) for n = 1..112

Example

Some solutions for n=4
..5..0..6..7..2....3..0..0..6..7....3..6..0..1..0....2..1..0..7..7
..5..5..0..7..3....3..3..0..4..7....2..6..0..2..4....2..1..6..1..7
..0..1..0..7..3....5..0..2..7..7....5..6..6..4..4....2..2..7..3..0
..2..3..5..7..7....5..5..3..3..7....1..3..0..5..4....0..4..7..7..2

Crossrefs

Sequence in context: A257152 A257159 A254741 * A192219 A282424 A129347

Adjacent sequences: A203256 A203257 A203258 * A203260 A203261 A203262

Keyword

nonn

Author

R. H. Hardin Dec 30 2011

Status

approved