OFFSET
1,1
COMMENTS
Column 3 of A235289.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-1) +3*a(n-2) -15*a(n-3) +4*a(n-4) +18*a(n-5) -12*a(n-6)
EXAMPLE
Some solutions for n=4:
3 1 3 0 0 2 0 2 1 3 2 3 1 0 1 0 3 2 3 2
1 3 1 2 2 0 2 0 2 0 3 0 0 3 0 3 0 3 0 3
3 1 3 0 0 2 0 2 0 2 1 2 3 2 3 2 2 1 2 1
1 3 1 2 2 0 2 0 2 0 3 0 0 3 0 3 0 3 0 3
3 1 3 0 0 2 0 2 0 2 1 2 3 2 3 2 2 1 2 1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 05 2014
STATUS
approved