OFFSET
1,1
COMMENTS
Column 2 of A256029
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-1) -a(n-2) +5*a(n-3) -9*a(n-4) -5*a(n-5) -3*a(n-6) +7*a(n-7) +7*a(n-8) +4*a(n-9) -3*a(n-10) -2*a(n-11) -2*a(n-12)
EXAMPLE
Some solutions for n=4
..1..0..1..1....1..0..1..1....0..1..1..0....1..1..0..1....1..1..0..1
..1..1..1..1....1..1..1..1....1..1..1..1....0..1..1..1....1..1..1..0
..1..1..0..1....1..1..1..1....1..1..1..1....1..1..1..1....1..1..1..1
..1..1..1..1....0..1..1..0....1..1..0..1....1..1..1..1....0..1..1..1
..1..1..1..0....1..1..1..1....0..1..1..1....1..1..1..0....1..1..1..1
..0..1..1..1....1..1..1..1....1..1..1..0....1..1..0..1....1..1..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 13 2015
STATUS
approved