OFFSET
1,1
COMMENTS
Column 6 of A250797.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 12*a(n-1) -49*a(n-2) +50*a(n-3) +165*a(n-4) -408*a(n-5) +a(n-6) +618*a(n-7) -224*a(n-8) -344*a(n-9) +108*a(n-10) +72*a(n-11).
EXAMPLE
Some solutions for n=4
..1..1..1..1..0..0..1....1..0..0..1..0..0..1....1..0..0..0..1..0..1
..1..1..1..1..0..1..0....1..0..0..1..0..1..0....0..1..1..1..0..1..0
..1..1..1..1..0..0..1....1..0..0..0..1..0..1....0..1..1..1..1..0..1
..1..1..1..1..0..1..0....1..0..0..1..0..1..0....0..1..1..1..1..0..0
..1..1..1..1..0..1..1....1..0..0..1..0..1..1....0..1..1..1..1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 27 2014
STATUS
approved