OFFSET
1,1
COMMENTS
Column 1 of A236737
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 9*a(n-1) -9*a(n-2) -109*a(n-3) +254*a(n-4) +260*a(n-5) -1156*a(n-6) +576*a(n-7) +944*a(n-8) -1024*a(n-9) +256*a(n-10)
EXAMPLE
Some solutions for n=5
..2..1....0..0....1..0....0..2....0..1....2..0....2..0....0..2....0..1....0..1
..2..0....1..2....0..0....1..2....1..1....1..2....1..0....0..0....1..1....2..1
..0..1....2..0....0..0....2..1....1..0....0..0....0..1....0..0....1..2....1..0
..2..2....2..1....0..0....2..0....0..0....1..2....1..0....1..0....1..1....1..1
..0..1....2..1....2..0....1..2....0..2....1..2....0..1....1..2....2..1....2..1
..2..0....1..2....0..0....1..2....1..1....0..0....0..1....0..1....1..0....1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 30 2014
STATUS
approved