OFFSET
1,1
COMMENTS
Column 4 of A204483
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 4*a(n-1) +a(n-2) -2*a(n-3) -19*a(n-4) -4*a(n-5) +21*a(n-6) +24*a(n-7) +3*a(n-8) -18*a(n-9) -9*a(n-10) for n>13
EXAMPLE
Some solutions for n=3
..0..0..0..0..0..1....0..1..2..3..1..0....0..0..0..0..0..1....0..1..1..1..2..3
..1..1..1..1..1..1....0..1..2..3..1..0....2..2..2..2..0..2....0..0..1..1..1..0
..1..1..1..1..1..1....0..1..2..3..1..0....0..0..0..0..0..0....0..0..0..1..1..1
..2..2..2..2..2..2....0..1..2..3..1..0....0..0..0..0..0..0....3..0..0..0..1..1
..1..1..1..1..1..1....0..1..2..3..1..0....1..0..1..1..1..1....3..2..0..0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 15 2012
STATUS
approved