A203343 Number of nX5 0..4 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors

1, 425, 142167, 23912553, 3742207236, 643689050030, 112737045408576, 19611990609779478, 3420412211064805056, 598821942388221971705, 104926823302871150129636, 18385629169540586971804768

Offset

1,2

Comments

Column 5 of A203346

Links

R. H. Hardin, Table of n, a(n) for n = 1..109

Example

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

Crossrefs

Sequence in context: A294712 A160098 A349940 * A207233 A207226 A207013

Adjacent sequences: A203340 A203341 A203342 * A203344 A203345 A203346

Keyword

nonn

Author

R. H. Hardin Dec 31 2011

Status

approved