OFFSET
1,1
COMMENTS
Column 3 of A227594
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 7*a(n-1) +7*a(n-2) +4*a(n-3) -69*a(n-4) -305*a(n-5) -518*a(n-6) -607*a(n-7) -271*a(n-8) -252*a(n-9) -12*a(n-10) +28*a(n-11)
EXAMPLE
Some solutions for n=4
..0..1..1....1..1..0....0..0..1....1..1..1....0..1..0....0..1..0....1..1..0
..0..0..0....0..1..1....1..0..1....1..1..0....1..0..1....1..0..0....1..1..1
..1..0..1....1..1..1....0..0..1....0..0..0....0..1..1....1..1..0....0..0..0
..1..0..0....0..0..0....0..1..1....1..1..1....0..1..1....1..0..0....1..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jul 17 2013
STATUS
approved