OFFSET
1,1
COMMENTS
Column 2 of A235573
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 9*a(n-1) -19*a(n-2) -47*a(n-3) +211*a(n-4) -45*a(n-5) -665*a(n-6) +643*a(n-7) +714*a(n-8) -1200*a(n-9) +16*a(n-10) +640*a(n-11) -256*a(n-12)
EXAMPLE
Some solutions for n=5
..1..1..1....0..0..0....1..1..0....1..1..1....0..1..0....1..0..0....0..1..1
..1..1..0....0..0..1....1..1..0....0..1..1....1..1..1....1..1..0....1..1..1
..0..1..1....1..0..0....0..1..0....1..1..0....1..1..1....1..0..0....1..0..0
..1..1..1....1..1..0....1..1..0....0..1..0....1..0..1....0..0..0....1..0..0
..1..0..1....1..1..1....1..1..0....1..0..0....1..1..1....1..0..0....0..1..0
..0..0..1....0..1..1....0..0..0....1..0..0....1..1..1....1..1..1....1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 12 2014
STATUS
approved