OFFSET
1,4
COMMENTS
Column 1 of A265218.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
All solutions for n=4
..0....0....0....0
..3....1....1....3
..0....0....2....2
..3....3....3....3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 05 2015
STATUS
approved