A199652 Number of nX5 0..2 arrays with values 0..2 introduced in row major order and each element equal to no more than two horizontal and vertical neighbors

41, 8037, 1357484, 230693158, 39209840355, 6663970316970, 1132589231853096, 192491652879392515, 32715334199617664326, 5560205218374521415185, 944996676143473092852595, 160608949278619262130353064

Offset

1,1

Comments

Column 5 of A199655

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

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

Crossrefs

Sequence in context: A160477 A221344 A325481 * A241111 A198713 A208319

Adjacent sequences: A199649 A199650 A199651 * A199653 A199654 A199655

Keyword

nonn

Author

R. H. Hardin Nov 08 2011

Status

approved