login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A197748
Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,3,0,1,0 for x=0,1,2,3,4
1
8, 186, 4086, 64832, 1345639, 26488736, 517762136, 10253557106, 201303354308, 3960281174841, 78026833052921, 1535648544087160, 30232523451117831, 595202431920865248, 11716746352661448795, 230663246714597008476
OFFSET
1,1
COMMENTS
Every 0 is next to 0 3'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 0's
Column 6 of A197750
LINKS
EXAMPLE
Some solutions containing all values 0 to 4 for n=4
..2..0..0..0..0..0....1..3..1..0..0..0....1..3..1..2..0..2....2..0..2..2..0..0
..0..4..0..4..0..0....0..1..2..0..0..0....0..1..0..0..4..0....0..4..0..0..0..0
..0..0..1..0..0..0....0..1..0..0..4..0....0..0..4..0..0..0....0..0..0..2..1..0
..0..1..3..1..0..0....1..3..1..2..0..2....0..0..0..0..0..0....0..0..2..1..3..1
CROSSREFS
Sequence in context: A227584 A197894 A198011 * A198153 A197233 A163701
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 17 2011
STATUS
approved