OFFSET
1,1
COMMENTS
Column 3 of A204616
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 9*a(n-1) -8*a(n-2) -72*a(n-3) +96*a(n-4) +128*a(n-5) -128*a(n-6) -64*a(n-7) for n>10
EXAMPLE
Some solutions for n=4
..1..0..1..1....1..1..0..0....1..0..1..1....1..0..0..0....1..1..0..0
..0..0..0..0....1..0..0..0....1..0..1..1....0..0..0..1....0..0..0..1
..0..1..1..0....0..0..1..1....0..0..1..1....0..1..0..1....0..1..0..1
..0..0..0..0....0..0..0..0....1..0..0..0....0..1..0..1....0..1..0..1
..1..1..1..1....1..0..0..1....1..0..0..0....0..0..0..0....0..0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 17 2012
STATUS
approved