A197405 Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,0,1,1,1 for x=0,1,2,3,4

5, 71, 358, 3305, 25621, 199384, 1634731, 13013551, 103260478, 825286477, 6597403489, 52719871616, 421012069157, 3360781198751, 26839340562982, 214392512110323, 1712358386200271, 13675010695945780, 109210026376844947

Offset

1,1

Comments

Every 0 is next to 0 3's, every 1 is next to 1 0's, every 2 is next to 2 1's, every 3 is next to 3 1's, every 4 is next to 4 1's

Column 4 of A197409

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A295332 A123077 A171554 * A295536 A197427 A197668

Adjacent sequences: A197402 A197403 A197404 * A197406 A197407 A197408

Keyword

nonn

Author

R. H. Hardin Oct 14 2011

Status

approved