OFFSET
1,1
COMMENTS
Column 2 of A220967
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 6*a(n-1) -3*a(n-2) -22*a(n-3) +15*a(n-4) -36*a(n-5) +36*a(n-6) -16*a(n-7) +4*a(n-8) -8*a(n-9) -40*a(n-10) +32*a(n-11) +4*a(n-12) -16*a(n-13)
EXAMPLE
Some solutions for n=3
..0..0....1..1....0..1....0..1....0..1....1..0....0..1....1..0....0..0....1..1
..0..0....0..1....1..1....0..0....1..1....0..0....1..0....0..1....0..0....1..0
..0..0....0..0....1..0....0..0....0..1....1..0....1..1....0..0....0..1....1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 27 2012
STATUS
approved