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
R. H. Hardin, Table of n, a(n) for n = 1..209
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
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 17 2011
STATUS
approved