OFFSET
1,1
COMMENTS
Column 2 of A240406
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-2) +10*a(n-3) -3*a(n-4) -6*a(n-5) -3*a(n-6) +8*a(n-7) -7*a(n-8) -9*a(n-9) -4*a(n-10) +13*a(n-11) -14*a(n-12) +17*a(n-13) -a(n-15)
EXAMPLE
Some solutions for n=4
..2..1....2..2....2..2....2..1....2..1....2..1....2..2....2..1....2..1....2..2
..3..3....2..0....2..0....2..1....3..3....2..1....3..3....3..3....3..3....3..3
..3..2....2..0....2..0....2..0....2..0....2..0....3..2....3..2....2..1....3..1
..2..2....2..0....3..3....2..0....3..1....3..3....2..1....2..0....3..1....2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 04 2014
STATUS
approved