OFFSET
1,1
COMMENTS
Column 1 of A224636
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..60
FORMULA
Empirical: a(n) = 2*a(n-1) -2*a(n-2) +2*a(n-3) -a(n-4) +2*a(n-6) -3*a(n-7) +4*a(n-8) -4*a(n-9) +3*a(n-10) -2*a(n-11) -2*a(n-14) +2*a(n-15) -2*a(n-16) +2*a(n-17) -a(n-18) +a(n-19) for n>30
EXAMPLE
Some solutions for n=2
..1..1..0..0..1..2....1..0..0..0..0..0....1..1..2..0..2..0....1..0..2..0..0..0
..0..0..0..0..0..0....1..0..0..0..0..0....0..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..0..0..0..0
..0..0..1..0..0..0....0..0..0..0..2..0....0..0..0..1..1..0....0..1..1..1..1..0
..0..0..0..0..0..0....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..1..0....0..0..0..1..1..0....0..0..0..0..0..0
..0..0..0..1..0..1....0..0..0..0..2..0....0..0..0..2..0..1....0..1..0..2..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 12 2013
STATUS
approved