OFFSET
1,1
COMMENTS
Column 1 of A252407
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 11*a(n-3) -39*a(n-6) +55*a(n-9) -59*a(n-12) +40*a(n-15) -10*a(n-18) +2*a(n-21) +a(n-24) for n>28
EXAMPLE
Some solutions for n=4
..0..1..3....1..3..3....2..2..3....0..0..2....2..2..3....3..2..2....3..1..3
..2..2..0....2..3..2....1..3..3....2..0..0....1..3..0....3..1..0....0..0..2
..3..2..2....2..2..0....2..0..2....3..0..3....2..3..2....2..2..3....2..0..0
..3..1..3....1..3..3....2..2..3....0..0..2....2..2..3....3..2..2....3..0..3
..2..2..0....2..0..2....1..3..3....2..0..0....1..0..3....3..1..3....0..0..2
..0..2..2....2..2..3....2..0..2....3..1..3....2..3..2....2..2..0....2..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 17 2014
STATUS
approved