OFFSET
1,1
COMMENTS
Every 0 is next to 0 4's, every 1 is next to 1 2'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 5 of A197613
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..1..2..2..1....1..2..0..0..0....0..2..1..1..2....0..1..2..0..1
..0..3..1..1..0....3..1..3..1..0....0..1..3..0..1....1..4..1..1..2
..2..1..4..1..0....1..4..1..2..0....1..4..1..2..0....2..1..3..1..0
..1..3..1..2..0....2..1..0..0..0....2..1..3..1..0....0..0..0..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 16 2011
STATUS
approved