OFFSET
1,4
COMMENTS
Column 2 of A266854.
EXAMPLE
Some solutions for n=5
..0..2....0..2....0..4....0..0....0..4....0..4....0..0....0..4....0..0....0..3
..0..2....4..1....4..2....3..2....3..2....4..3....4..3....4..2....4..2....2..1
..4..1....3..1....2..1....1..1....2..1....3..2....1..1....1..1....1..4....0..4
..1..4....3..0....0..3....4..4....4..3....2..1....4..3....0..3....3..3....4..3
..3..3....2..4....3..1....3..2....1..0....1..0....2..2....3..2....2..1....2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 04 2016
STATUS
approved