A203276 Number of nX7 0..5 arrays with every nonzero element less than or equal to some NW, E or S neighbor

1, 31121459, 2854004857534, 94164551870236956, 2658493631378011835550, 85442744497742460143930997, 2882997102757569110567142289632, 95409196245724543971463645967413336

Offset

1,2

Comments

Column 7 of A203277

Links

R. H. Hardin, Table of n, a(n) for n = 1..12

Example

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

Crossrefs

Sequence in context: A261986 A103576 A288087 * A182088 A209786 A251530

Adjacent sequences: A203273 A203274 A203275 * A203277 A203278 A203279

Keyword

nonn

Author

R. H. Hardin Dec 31 2011

Status

approved