OFFSET
1,1
COMMENTS
Row 4 of A240783
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 6*a(n-1) -11*a(n-2) +7*a(n-3) -10*a(n-5) +13*a(n-6) -3*a(n-7) +27*a(n-8) -44*a(n-9) +13*a(n-10) +5*a(n-11) -8*a(n-12) +8*a(n-13) -3*a(n-14) +a(n-15)
EXAMPLE
Some solutions for n=4
..0..0..1..0....0..1..1..0....0..1..0..1....0..0..1..0....0..1..0..1
..0..0..1..1....1..1..1..0....1..1..0..1....0..0..1..0....0..1..1..0
..1..0..0..1....1..1..0..1....1..1..0..1....1..1..0..0....0..1..1..1
..1..0..0..1....0..1..0..1....1..0..1..0....1..1..0..0....1..0..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 12 2014
STATUS
approved