OFFSET
1,1
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..46
FORMULA
Empirical: a(n) = 3*a(n-1) +17*a(n-2) -57*a(n-3) -86*a(n-4) +372*a(n-5) +76*a(n-6) -972*a(n-7) +360*a(n-8) +864*a(n-9) -576*a(n-10).
EXAMPLE
Some solutions for n=5:
3 1 3 2 3 0 3 0 3 2 3 2 3 2 3 2 3 2
0 1 0 2 0 0 0 0 0 2 0 2 0 2 0 2 0 2
3 1 3 2 3 0 3 0 3 0 1 0 1 0 1 0 1 0
0 1 0 2 0 0 0 0 0 3 1 3 1 3 1 3 1 3
3 1 3 2 3 0 3 0 3 2 3 2 3 2 3 2 3 2
0 1 0 2 0 0 0 0 0 2 0 2 0 2 0 2 0 2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 05 2014
STATUS
approved