OFFSET
1,1
COMMENTS
Column 7 of A229586.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 84*a(n-1) - 2466*a(n-2) + 31428*a(n-3) - 206469*a(n-4) + 750384*a(n-5) - 1513404*a(n-6) + 1574640*a(n-7) - 656100*a(n-8).
EXAMPLE
Some solutions for n=3:
0 1 2 0 1 0 2 0 1 0 2 1 2 1 0 1 2 0 1 0 1
0 1 2 0 2 1 0 0 1 0 2 1 2 1 0 1 2 0 1 0 1
2 1 2 1 2 1 1 0 2 0 2 1 2 2 0 2 1 0 2 0 2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 26 2013
STATUS
approved