OFFSET
1,1
COMMENTS
Column 4 of A241619
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 2*a(n-1) +a(n-2) +7*a(n-3) -4*a(n-4) -5*a(n-5) -12*a(n-6) +4*a(n-7) +3*a(n-8) +9*a(n-9) -3*a(n-10) -a(n-11) -3*a(n-12) +a(n-13) +a(n-15)
EXAMPLE
Some solutions for n=5
..1....0....2....0....3....2....2....0....2....4....0....1....0....0....0....3
..0....0....0....0....0....2....0....0....0....0....0....2....0....1....2....0
..0....0....1....1....1....0....1....1....0....0....3....0....3....0....0....0
..2....1....2....2....2....0....0....1....0....1....1....1....0....0....1....2
..0....0....0....1....0....0....3....0....0....1....0....1....1....0....3....0
..2....0....0....0....0....0....0....2....0....1....0....2....1....0....0....0
..2....3....4....3....3....3....0....1....3....1....0....0....2....3....1....1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 26 2014
STATUS
approved