OFFSET
1,1
COMMENTS
Column 1 of A220109
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 4*a(n-1) +2*a(n-2) +3*a(n-3) -32*a(n-4) -34*a(n-5) -23*a(n-6) -158*a(n-7) +295*a(n-9) +42*a(n-10) -65*a(n-11) +12*a(n-12) -44*a(n-13) +2*a(n-14) +24*a(n-15)
EXAMPLE
Some solutions for n=3
..1....2....3....0....0....0....0....2....1....1....3....3....1....3....2....0
..1....0....1....0....2....3....1....0....0....1....2....3....3....0....1....3
..2....3....3....2....1....3....0....1....3....1....3....3....2....2....1....2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 05 2012
STATUS
approved