OFFSET
1,1
COMMENTS
Row 7 of A208118
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = a(n-1) -12*a(n-2) +55*a(n-3) +805*a(n-4) +900*a(n-5) +10320*a(n-6) -123840*a(n-8) -129600*a(n-9) -1391040*a(n-10) -1140480*a(n-11) +2985984*a(n-12) -2985984*a(n-13) +35831808*a(n-14)
EXAMPLE
Some solutions for n=4
..0..0..1..1....0..0..1..1....0..0..1..1....1..1..1..1....1..1..0..0
..1..0..1..1....1..0..0..1....1..1..1..1....0..1..1..1....0..0..1..1
..0..0..1..1....0..0..1..1....0..0..1..1....0..1..1..1....1..1..0..0
..1..0..1..1....1..0..0..1....1..1..0..0....0..0..1..1....0..0..1..1
..0..0..1..1....0..0..1..1....0..0..1..1....0..1..1..0....1..1..0..0
..1..0..0..1....1..0..0..1....1..1..0..0....0..0..1..1....0..0..1..1
..0..0..1..1....0..0..1..1....0..0..1..1....0..1..1..0....1..1..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 23 2012
STATUS
approved