A197314 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,1,1,0,0 for x=0,1,2,3,4

2, 9, 128, 152, 1033, 4780, 24903, 113774, 553807, 2751427, 13385323, 64601708, 318081207, 1550881210, 7598781154, 37018138503, 181198882339, 884596380240, 4326961466564, 21126289404408, 103287098681855, 504482396779592

Offset

1,1

Comments

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

Column 5 of A197317

Links

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

Example

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

Crossrefs

Sequence in context: A090242 A047684 A162955 * A295331 A064448 A173215

Adjacent sequences: A197311 A197312 A197313 * A197315 A197316 A197317

Keyword

nonn

Author

R. H. Hardin Oct 13 2011

Status

approved