A198652 Number of n X 5 0..6 arrays with values 0..6 introduced in row major order and each element equal to at least one horizontal or vertical neighbor.

3, 488, 98467, 39898934, 21787578805, 15022218265442

Offset

1,1

Comments

Column 5 of A198654.

Links

Table of n, a(n) for n=1..6.

Example

Some solutions with all values 0 to 6 for n=4
..0..0..1..1..2....0..0..0..1..2....0..0..1..2..2....0..0..0..0..0
..0..3..4..2..2....0..1..3..1..2....0..1..1..3..4....0..1..2..2..3
..0..3..4..5..5....2..1..3..4..4....5..6..1..3..4....4..1..5..5..3
..6..6..6..6..5....2..5..5..6..6....5..6..6..5..5....4..6..6..1..1

Crossrefs

Cf. A198654.

Sequence in context: A045616 A198705 A198624 * A198659 A142801 A057632

Adjacent sequences: A198649 A198650 A198651 * A198653 A198654 A198655

Keyword

nonn,changed

Author

R. H. Hardin, Oct 28 2011

Status

approved