A197233 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,3,0,1,2 for x=0,1,2,3,4

8, 186, 5355, 141210, 3710070, 98514881, 2633810897, 70009757794, 1862777323325, 49566883751088, 1318485619230845, 35084791882972069, 933492052284083925, 24835622437581060135, 660793443295539766640, 17581467273487795187534

Offset

1,1

Comments

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

Column 6 of A197235

Links

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

Example

Some solutions for n=4
..0..2..0..0..0..2....0..0..2..0..0..0....0..2..0..0..1..0....0..2..0..0..0..2
..1..3..1..2..0..0....0..2..2..0..0..0....0..2..2..1..3..1....0..2..0..0..0..0
..0..1..0..1..0..0....2..2..0..0..0..0....0..0..0..2..2..0....0..2..2..0..2..2
..2..0..1..3..1..0....0..0..0..0..0..0....2..0..0..0..0..2....2..0..2..0..2..0

Crossrefs

Sequence in context: A198011 A197748 A198153 * A163701 A354407 A244438

Adjacent sequences: A197230 A197231 A197232 * A197234 A197235 A197236

Keyword

nonn

Author

R. H. Hardin Oct 12 2011

Status

approved