A203336 Number of nX6 0..5 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors

1, 5545, 12872510, 12492984999, 11409771585523, 11867803667695158, 12521002071185162318

Offset

1,2

Comments

Column 6 of A203338

Links

Table of n, a(n) for n=1..7.

Example

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

Crossrefs

Sequence in context: A255100 A031795 A180267 * A045104 A043512 A167281

Adjacent sequences: A203333 A203334 A203335 * A203337 A203338 A203339

Keyword

nonn

Author

R. H. Hardin Dec 31 2011

Status

approved