OFFSET
1,1
COMMENTS
Row 6 of A246479
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-1) +4*a(n-2) -20*a(n-3) +56*a(n-5) -28*a(n-6) -84*a(n-7) +70*a(n-8) +70*a(n-9) -84*a(n-10) -28*a(n-11) +56*a(n-12) -20*a(n-14) +4*a(n-15) +3*a(n-16) -a(n-17)
EXAMPLE
Some solutions for n=4
..2....3....0....1....4....1....1....0....4....4....1....3....2....4....2....0
..3....4....3....1....3....1....0....0....4....4....1....0....0....4....4....2
..3....2....3....1....3....4....1....1....3....4....4....2....0....2....3....1
..3....3....2....2....3....2....1....1....3....3....1....3....3....3....4....1
..2....4....4....4....3....4....1....1....2....3....1....3....3....4....3....1
..0....3....3....1....3....4....1....1....3....2....1....3....3....4....4....1
..0....2....3....4....4....4....4....2....4....4....1....3....3....4....4....2
..1....3....2....1....3....4....1....4....4....4....1....2....3....3....4....1
..0....3....0....2....4....2....1....4....2....4....4....3....4....4....3....4
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 27 2014
STATUS
approved