OFFSET
1,1
COMMENTS
Column 5 of A224588
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..136
FORMULA
Empirical: a(n) = 2*a(n-1) -a(n-2) +a(n-3) -a(n-4) -a(n-5) +a(n-6) +a(n-8) -a(n-9) -a(n-10) +a(n-12) +a(n-14) -a(n-15) for n>21
EXAMPLE
Some solutions for n=2
..1..0..0..0..0..0..0..0..0..0..0....1..0..0..0..0..0..0..0..0..0..1
..1..0..0..0..0..0..0..0..0..0..0....1..0..0..0..0..0..0..0..0..0..0
..1..0..0..0..0..0..0..0..0..0..1....0..0..0..1..0..0..0..1..0..0..1
..1..0..0..0..0..0..0..0..0..0..1....0..0..0..1..0..0..0..1..0..0..0
..1..0..0..0..0..0..0..0..0..0..0....0..0..0..1..0..0..0..1..0..0..0
..0..0..0..0..0..0..0..0..0..0..1....1..0..0..1..0..0..0..1..0..0..1
..1..0..0..0..0..0..0..0..0..0..1....1..0..0..0..0..0..0..0..0..0..1
..1..0..0..0..0..0..0..0..0..0..1....0..0..0..0..0..0..0..0..0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 11 2013
STATUS
approved