OFFSET
1,1
COMMENTS
Column 4 of A198253
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..51
EXAMPLE
Some solutions for n=3
..0..0..1..1..2..2..3..3....0..0..1..1..2..2..1..1....0..0..1..1..2..2..3..3
..0..0..1..1..2..2..3..3....0..0..1..1..2..2..1..1....0..0..1..1..2..2..3..3
..3..3..2..2..3..3..2..2....1..1..0..0..3..3..2..2....1..1..3..3..4..4..2..2
..3..3..2..2..3..3..2..2....1..1..0..0..3..3..2..2....1..1..3..3..4..4..2..2
..1..1..3..3..2..2..4..4....3..3..2..2..4..4..3..3....3..3..1..1..0..0..4..4
..1..1..3..3..2..2..4..4....3..3..2..2..4..4..3..3....3..3..1..1..0..0..4..4
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 22 2011
STATUS
approved