OFFSET
1,1
COMMENTS
Column 5 of A226992
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..67
EXAMPLE
Some solutions for n=4
..0..0..1..2..3....0..0..0..1..2....0..0..1..2..2....0..0..1..3..4
..1..2..2..1..1....0..1..2..2..1....1..2..3..4..3....1..2..2..2..2
..3..4..2..0..0....0..2..4..3..2....2..2..3..4..3....2..4..2..0..0
..4..4..3..1..0....1..2..3..3..3....3..2..3..4..2....3..4..3..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 25 2013
STATUS
approved