OFFSET
1,1
COMMENTS
Column 3 of A210788
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..4..3..1....2..3..4....1..2..2....1..3..1....2..4..4....2..3..3....4..2..4
..2..1..3....3..4..2....3..1..4....4..1..2....2..3..4....2..1..3....1..2..1
..1..3..1....1..3..4....4..3..4....4..3..2....3..4..2....4..4..1....3..4..3
..3..1..2....4..1..3....1..2..3....1..4..3....1..3..1....3..2..2....4..3..4
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 26 2012
STATUS
approved