OFFSET
1,1
COMMENTS
Column 1 of A236354
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 9*a(n-2) +64*a(n-3) +304*a(n-4) +596*a(n-5) +912*a(n-6) +176*a(n-7) -2528*a(n-8) -3648*a(n-9) -2048*a(n-10)
EXAMPLE
Some solutions for n=5
..2..1....1..2....2..0....1..2....2..2....0..2....2..2....1..2....2..0....0..2
..0..1....1..2....2..1....0..2....0..2....2..2....0..0....2..2....2..1....2..2
..2..0....1..0....1..0....2..0....1..1....0..1....0..0....1..0....2..2....0..0
..1..1....2..2....1..0....2..2....2..2....0..2....2..2....0..2....1..0....0..1
..0..0....0..2....2..2....0..1....0..2....0..0....2..1....2..0....2..1....0..2
..0..0....0..2....2..0....2..1....2..0....2..1....0..1....1..0....2..2....1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 23 2014
STATUS
approved