A203098 Number of nX5 0..3 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor

144, 143510, 87531478, 48260497186, 27467664499412, 15712898935252156, 8968410661761080882, 5118067454812170831280, 2921169534343554102418252, 1667264462683367539615630114, 951588418839778093530014930652

Offset

1,1

Comments

Column 5 of A203101

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A272462 A217339 A231827 * A159724 A221124 A008700

Adjacent sequences: A203095 A203096 A203097 * A203099 A203100 A203101

Keyword

nonn

Author

R. H. Hardin Dec 29 2011

Status

approved