OFFSET
1,1
COMMENTS
Column 1 of A202406
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 2*a(n-1) -a(n-2) +18*a(n-3) +44*a(n-4) +38*a(n-5) +80*a(n-6) -80*a(n-8) -38*a(n-9) -44*a(n-10) -18*a(n-11) +a(n-12) -2*a(n-13) +a(n-14)
EXAMPLE
Some solutions for n=5
..1..0..1....1..1..1....1..1..0....0..1..1....0..1..1....1..1..1....1..1..0
..1..1..0....0..1..1....1..1..1....1..0..0....0..1..1....0..1..1....1..1..1
..0..1..1....1..1..1....1..0..1....1..0..1....1..1..1....1..0..0....0..0..1
..0..1..1....1..1..1....1..0..1....1..1..1....1..0..1....1..0..1....1..1..1
..1..1..1....0..0..1....1..1..1....0..1..1....1..0..0....0..1..1....1..1..1
..1..0..1....1..0..1....0..1..1....1..1..0....0..1..1....1..1..0....1..0..1
..1..1..0....1..1..0....0..0..1....1..0..0....0..1..1....1..0..1....0..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 19 2011
STATUS
approved