OFFSET
1,1
COMMENTS
Column 3 of A200990
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..103
EXAMPLE
Some solutions for n=4
..0..1..1....0..2..2....0..0..2....0..0..2....0..0..0....0..0..2....0..0..2
..0..2..2....0..2..3....1..1..4....1..2..3....1..1..2....1..2..4....0..1..2
..1..2..4....1..3..4....1..2..4....1..3..3....2..3..4....1..3..4....1..1..3
..3..3..4....1..3..4....3..3..4....4..4..4....3..4..4....1..3..4....3..4..4
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 25 2011
STATUS
approved