OFFSET
1,1
COMMENTS
Column 4 of A219451
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..70
FORMULA
Empirical: a(n) = 5*a(n-1) -7*a(n-2) +8*a(n-3) +20*a(n-4) -22*a(n-5) +6*a(n-6) +34*a(n-7) +15*a(n-8) -21*a(n-9) -28*a(n-10) -35*a(n-11) -9*a(n-12) -a(n-13) for n>14
EXAMPLE
Some solutions for n=3
..1..1..0..0....1..1..0..0....1..0..0..1....0..0..0..0....0..0..1..1
..0..0..0..0....1..1..0..0....0..0..0..1....0..0..0..0....0..0..0..0
..0..0..0..0....1..1..0..0....0..0..0..1....1..0..0..0....0..0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 20 2012
STATUS
approved