OFFSET
1,1
COMMENTS
Diagonal of A263382.
EXAMPLE
Some solutions for n=3
..2..4..2..0....2..4..3..4....4..4..2..2....3..1..1..0....3..4..2..1
..0..1..2..1....0..4..3..2....0..1..4..0....3..1..1..0....1..4..1..4
..0..3..4..4....2..4..0..1....2..1..0..4....0..2..2..3....1..2..4..3
..2..0..4..0....1..1..0..3....3..1..1..0....0..2..2..3....0..2..2..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 16 2015
STATUS
approved