OFFSET
1,1
COMMENTS
Column 2 of A202124
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 2*a(n-1) +a(n-3) +3*a(n-4) -2*a(n-5) -3*a(n-6) -4*a(n-7) -3*a(n-8) -2*a(n-9) +3*a(n-10) +4*a(n-11) +2*a(n-12) for n>17
EXAMPLE
Some solutions for n=7
..1...-1...-1....1....1....1...-2....1....0....2...-2...-2....0....1....1....0
..0...-2...-2....1...-1....1....0....1....2....2....0...-2...-1....0....1...-1
..0...-2...-2....2...-1....0....0....2....2....1....2...-1...-1....0....0...-2
.-1...-2...-1....2...-1....0....0....2....2....1....2....0...-1....1....0...-1
.-1....0....1....2...-1...-1....1....2....1....0....1....1....0....1....0....0
.-1....2....2....1...-1...-2....2....0...-1...-1....1....1....0....1....0....0
..1....2....1....1...-1...-2....2...-2...-2....0....2....0....1....2...-1...-1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 11 2011
STATUS
approved