OFFSET
1,3
COMMENTS
Row 5 of A270850.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..25
EXAMPLE
Some solutions for n=3
......2..........2..........0..........3..........1..........3..........0
.....2.3........2.3........1.1........2.3........0.0........3.2........0.0
....3.3.2......3.3.3......0.0.0......3.2.3......0.0.0......3.2.3......0.0.0
...3.3.3.3....3.2.3.3....0.0.0.1....3.3.3.3....0.0.0.1....2.3.3.3....0.1.0.1
..3.2.3.3.3..3.3.3.3.3..1.0.0.0.0..3.2.3.3.2..0.1.0.0.1..3.3.2.3.3..0.1.0.0.0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 24 2016
STATUS
approved