A197362 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,3,1,1,1 for x=0,1,2,3,4

1, 89, 2435, 41459, 1041263, 24799027, 564930689, 13016997513, 302413118055, 7014256316261, 162356900029937, 3756243587537729, 87022713805696677, 2015969474427313369, 46677826922272579365, 1080890025532285110563

Offset

1,2

Comments

Every 0 is next to 0 4's, every 1 is next to 1 3'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 6 of A197364

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

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

Crossrefs

Sequence in context: A201091 A054680 A189453 * A232321 A264161 A264068

Adjacent sequences: A197359 A197360 A197361 * A197363 A197364 A197365

Keyword

nonn

Author

R. H. Hardin Oct 14 2011

Status

approved