OFFSET

1,1

COMMENTS

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

Column 7 of A196653

LINKS

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

EXAMPLE

Some solutions for n=4

..0..2..2..0..2..0..2....0..0..1..0..0..0..2....0..0..0..0..2..0..0

..0..0..0..2..2..0..0....0..1..4..1..2..0..0....0..0..0..2..1..2..0

..0..0..0..2..0..2..2....0..2..1..0..2..0..0....2..2..0..1..4..1..0

..0..0..0..2..0..2..0....2..0..0..2..3..2..0....0..2..0..0..1..0..2

CROSSREFS

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 04 2011

STATUS

approved