OFFSET
1,1
COMMENTS
Column 2 of A196544
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..200
FORMULA
Empirical: a(n) = 3*a(n-1) +22*a(n-2) +24*a(n-3) -86*a(n-4) -296*a(n-5) -126*a(n-6) +428*a(n-7) +420*a(n-8) +239*a(n-9) +92*a(n-10) -147*a(n-11) +22*a(n-12) +26*a(n-13) -13*a(n-14) +5*a(n-15)
EXAMPLE
Some solutions for n=4
..2..0....1..1....1..0....2..0....1..0....2..0....0..1....1..1....2..2....1..0
..2..1....3..3....3..3....0..3....2..3....0..2....2..3....2..3....0..1....2..3
..3..2....1..2....2..1....3..3....2..3....2..3....0..2....0..2....3..3....0..2
..0..1....0..1....2..0....0..1....2..0....1..0....1..2....1..2....1..1....1..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 03 2011
STATUS
approved