OFFSET
1,1
COMMENTS
Column 4 of A238654
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-1) +12*a(n-2) +a(n-3) -58*a(n-4) -115*a(n-5) +83*a(n-6) +312*a(n-7) +120*a(n-8) -336*a(n-9) -348*a(n-10) +420*a(n-11) +104*a(n-12) -194*a(n-13) +43*a(n-14) +35*a(n-15) -42*a(n-16) -3*a(n-17) +14*a(n-18) -a(n-19) -a(n-20)
EXAMPLE
Some solutions for n=5
..0..1..1..0..1..0....0..1..0..1..1..0....0..1..0..1..0..1....0..1..1..0..0..1
..1..0..0..1..0..1....1..0..1..0..0..1....1..0..1..0..1..0....1..0..0..1..1..0
..0..1..1..0..0..1....0..1..0..1..1..0....0..1..0..1..0..1....1..0..0..1..1..0
..0..1..1..0..1..0....0..1..1..0..1..0....1..0..1..0..0..1....0..1..1..0..0..1
..1..0..0..1..1..0....1..0..0..1..0..1....0..1..0..1..1..0....0..1..1..0..0..1
..1..0..0..1..0..1....1..0..0..1..0..1....1..0..0..1..1..0....1..0..0..1..1..0
..0..1..1..0..1..0....0..1..1..0..1..0....0..1..1..0..0..1....0..1..1..0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 02 2014
STATUS
approved