OFFSET
1,1
COMMENTS
Column 3 of A201033
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..20
EXAMPLE
Some solutions for n=4
..0..1..2....0..0..1....0..0..1....0..0..1....0..1..1....0..0..1....0..0..2
..0..1..3....0..2..4....1..2..2....1..1..4....0..1..3....1..4..4....1..3..2
..1..2..4....1..2..3....1..4..4....3..4..4....3..3..4....2..2..3....2..4..4
..2..3..4....1..3..4....3..3..4....2..2..3....2..2..4....2..3..3....1..4..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 26 2011
STATUS
approved