OFFSET
1,1
COMMENTS
Column 3 of A204740
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 4*a(n-1) +5*a(n-2) -30*a(n-3) -3*a(n-4) +88*a(n-5) -25*a(n-6) -126*a(n-7) +60*a(n-8) +88*a(n-9) -52*a(n-10) -24*a(n-11) +16*a(n-12)
EXAMPLE
Some solutions for n=4
..1..1..0..1....1..1..0..1....0..1..0..1....1..0..1..1....0..1..0..1
..0..1..1..1....1..0..1..1....1..0..1..1....1..1..1..0....1..1..1..1
..1..0..1..0....0..1..1..0....1..1..0..1....1..0..1..1....1..1..1..1
..1..1..1..1....1..1..0..1....1..0..1..1....0..1..1..1....1..1..1..1
..0..1..0..1....0..1..1..0....0..1..1..0....1..1..1..1....1..1..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 18 2012
STATUS
approved