OFFSET
1,1
COMMENTS
Column 2 of A205027
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 24*a(n-1) -102*a(n-2) -656*a(n-3) +4911*a(n-4) -9576*a(n-5) +5400*a(n-6) for n>21
EXAMPLE
Some solutions for n=4
..2..0..2....1..0..0....0..3..0....0..0..1....0..1..0....0..0..2....0..3..3
..3..0..1....3..0..0....2..0..0....0..0..1....0..0..0....1..0..0....1..3..2
..0..0..3....1..0..3....1..0..1....1..0..0....1..0..2....1..0..2....2..3..1
..2..0..1....1..0..2....1..0..0....3..0..1....3..0..1....2..0..0....2..2..0
..0..0..2....1..0..1....2..0..3....1..0..3....2..0..2....1..0..0....1..3..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 21 2012
STATUS
approved