OFFSET
1,1
COMMENTS
Column 4 of A224588
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..159
FORMULA
Empirical: a(n) = 3*a(n-1) -4*a(n-2) +4*a(n-3) -3*a(n-4) +a(n-5) +a(n-6) -2*a(n-7) +2*a(n-8) -2*a(n-9) +a(n-10) -a(n-13) +2*a(n-14) -2*a(n-15) +2*a(n-16) -a(n-17) for n>23
EXAMPLE
Some solutions for n=2
..1..0..0..0..0..0..0..0..0..0....1..0..0..0..0..0..0..0..0..0
..1..0..0..0..0..0..0..0..0..0....0..0..0..0..1..1..0..0..0..0
..1..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0..0..0....0..0..0..0..1..1..0..0..0..0
..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0..1
..1..0..0..0..0..0..0..0..0..1....0..0..0..0..1..1..0..0..0..0
..1..0..0..0..0..0..0..0..0..1....0..0..0..0..0..0..0..0..0..1
..0..0..0..0..0..0..0..0..0..1....0..0..0..0..0..0..0..0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 11 2013
STATUS
approved