OFFSET
1,1
COMMENTS
Column 5 of A201072.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..21
EXAMPLE
Some solutions for n=4
..0..0..1..2..2....0..0..1..2..5....0..1..2..2..4....0..0..0..1..2
..0..1..2..3..3....0..1..3..3..5....0..1..3..4..6....1..2..3..3..3
..1..3..4..4..6....1..2..4..4..6....0..1..3..4..6....1..4..4..4..6
..5..5..5..6..6....2..3..4..6..6....3..5..5..5..6....2..5..5..6..6
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 26 2011
STATUS
approved