A198624 Number of nX5 0..5 arrays with values 0..5 introduced in row major order and each element equal to at least one horizontal or vertical neighbor

3, 488, 98330, 38208073, 18048413395, 9630271257812, 5291151764465150, 2951559987278650909, 1652290176778975311860

Offset

1,1

Comments

Column 5 of A198627

Links

Table of n, a(n) for n=1..9.

Example

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

Crossrefs

Sequence in context: A241977 A045616 A198705 * A198652 A198659 A142801

Adjacent sequences: A198621 A198622 A198623 * A198625 A198626 A198627

Keyword

nonn

Author

R. H. Hardin Oct 27 2011

Status

approved