A198625 Number of nX6 0..5 arrays with values 0..5 introduced in row major order and each element equal to at least one horizontal or vertical neighbor

6, 3521, 3003238, 5040999127, 9630271257812

Offset

1,1

Comments

Column 6 of A198627

Links

Table of n, a(n) for n=1..5.

Example

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

Crossrefs

Sequence in context: A172955 A283885 A198706 * A198653 A198660 A048542

Adjacent sequences: A198622 A198623 A198624 * A198626 A198627 A198628

Keyword

nonn

Author

R. H. Hardin Oct 27 2011

Status

approved