A199362 Number of n X 5 0..3 arrays with values 0..3 introduced in row major order, the number of instances of each value within one of each other, and every element equal to one or two horizontal or vertical neighbors.

0, 35, 1655, 37995, 21988792, 3215936151

Offset

1,2

Comments

Column 5 of A199363.

Links

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

Example

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

Crossrefs

Cf. A199363.

Sequence in context: A386274 A180883 A130005 * A373115 A187364 A183417

Adjacent sequences: A199359 A199360 A199361 * A199363 A199364 A199365

Keyword

nonn

Author

R. H. Hardin, Nov 05 2011

Status

approved