OFFSET
1,1
COMMENTS
Row 7 of A208069
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = a(n-1) +4*a(n-2) +39*a(n-3) +20*a(n-4) +19*a(n-5) -191*a(n-6) -42*a(n-7) -36*a(n-8) +216*a(n-9) for n>11
EXAMPLE
Some solutions for n=4
..1..1..0..1....1..0..0..1....1..1..0..1....0..0..1..0....1..1..0..1
..1..1..0..1....0..1..1..0....1..0..0..1....0..0..1..1....1..1..0..1
..1..1..0..1....1..0..0..1....1..1..0..0....0..0..1..0....0..1..0..0
..0..1..0..1....0..1..1..0....1..0..0..1....0..0..1..0....1..0..0..1
..1..1..0..0....1..0..0..1....0..1..0..0....0..0..1..0....0..1..0..0
..0..1..0..1....0..0..1..0....1..0..0..1....0..0..1..0....1..0..0..1
..0..1..0..0....1..0..0..1....0..1..0..0....0..0..1..0....0..1..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 23 2012
STATUS
approved