A199362 Number of nX5 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

Sequence in context: A135923 A180883 A130005 * A187364 A183417 A199587

Adjacent sequences: A199359 A199360 A199361 * A199363 A199364 A199365

Keyword

nonn

Author

R. H. Hardin Nov 05 2011

Status

approved