A203335 Number of nX5 0..5 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors

1, 846, 532547, 156011082, 40063085907, 11409771585523, 3356615719680977, 978786459361069636, 285310208141080065257, 83540216581264773577930, 24502037639116600225965121, 7186736093273565053394656571

Offset

1,2

Comments

Column 5 of A203338

Links

R. H. Hardin, Table of n, a(n) for n = 1..38

Example

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

Crossrefs

Sequence in context: A188296 A187861 A280484 * A252253 A247532 A235065

Adjacent sequences: A203332 A203333 A203334 * A203336 A203337 A203338

Keyword

nonn

Author

R. H. Hardin Dec 31 2011

Status

approved