OFFSET
1,1
COMMENTS
Diagonal of A224559
FORMULA
Empirical: a(n) = 6*a(n-1) -15*a(n-2) +23*a(n-3) -30*a(n-4) +36*a(n-5) -34*a(n-6) +27*a(n-7) -21*a(n-8) +13*a(n-9) -6*a(n-10) +3*a(n-11) -a(n-12) for n>14
EXAMPLE
Some solutions for n=3
..1..0..0..0..0....1..1..0..0..0....1..0..0..0..0....1..0..0..0..0
..1..0..0..0..0....0..0..0..0..0....0..0..0..0..1....1..0..0..0..1
..1..0..0..0..0....0..0..0..0..1....0..0..0..0..1....0..0..0..0..1
..1..0..0..0..0....0..0..0..0..1....0..0..0..0..1....0..0..0..0..1
..1..0..0..0..0....0..0..0..0..1....0..0..0..0..1....0..0..0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 10 2013
STATUS
approved