OFFSET
1,2
COMMENTS
Row 3 of A229637.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 9*a(n-1) - 15*a(n-2) - 51*a(n-3) + 96*a(n-4) + 138*a(n-5) - 92*a(n-6) - 60*a(n-7) +4 8*a(n-8) - 8*a(n-9) for n > 12.
EXAMPLE
Some solutions for n=3:
0 1 1 0 0 1 0 1 2 0 1 0 0 1 0 0 1 0 0 1 2
2 1 0 1 2 1 0 1 0 1 2 1 2 1 0 2 1 0 0 1 2
2 1 0 1 0 0 1 2 1 1 0 1 1 1 0 1 2 0 1 0 2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 27 2013
STATUS
approved