OFFSET
1,1
COMMENTS
Column 4 of A195232
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..16
EXAMPLE
Some solutions for n=4
..1........1........2........2........3........0........3........1
..2.1......2.1......1.2......1.1......3.2......0.0......4.4......1.2
..1.2.2....1.1.1....2.1.2....1.1.0....2.2.2....0.1.0....4.4.3....2.2.2
..1.1.2.3..1.0.1.2..1.2.1.2..1.0.1.1..2.2.3.2..0.1.1.1..4.4.4.3..1.1.2.2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 13 2011
STATUS
approved