OFFSET
1,1
COMMENTS
Column 3 of A251268
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 6*a(n-1) +6*a(n-2) -55*a(n-3) +21*a(n-4) +97*a(n-5) -48*a(n-6) -52*a(n-7) +25*a(n-8) +5*a(n-9) -2*a(n-10)
EXAMPLE
Some solutions for n=4
..1..1..1..1....1..1..1..1....0..1..1..1....0..0..1..1....0..0..0..1
..0..0..1..1....0..0..1..1....0..0..1..1....0..0..0..0....1..1..1..1
..0..0..0..0....0..1..1..1....0..0..1..1....0..1..1..1....1..1..1..1
..0..1..1..1....0..0..1..1....0..0..0..0....0..1..1..1....0..1..1..1
..0..0..0..0....1..1..1..1....0..1..1..1....1..0..0..0....1..0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 01 2014
STATUS
approved