OFFSET
1,2
COMMENTS
Row 6 of A229586.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 60*a(n-1) - 1466*a(n-2) + 19056*a(n-3) - 143515*a(n-4) + 608478*a(n-5) - 957350*a(n-6) - 3924114*a(n-7) + 27201539*a(n-8) - 68079378*a(n-9) + 46537423*a(n-10) + 212613240*a(n-11) - 785654632*a(n-12) + 1389943104*a(n-13) - 1544105168*a(n-14) + 1125401088*a(n-15) - 524553472*a(n-16) + 142135296*a(n-17) - 17040384*a(n-18) for n > 26.
EXAMPLE
Some solutions for n=3:
0 1 0 0 1 2 0 1 2 0 1 0 0 1 2 0 1 2 0 0 1
0 2 1 2 0 1 2 0 2 2 1 2 0 1 0 0 1 2 1 2 1
2 0 2 2 0 1 1 1 2 2 0 1 0 2 0 2 0 0 0 2 0
2 1 2 2 1 0 0 1 0 2 0 0 1 2 1 2 1 0 0 2 1
2 1 2 0 2 0 2 1 0 1 2 1 0 1 2 2 1 0 1 0 2
0 1 0 0 2 1 0 1 0 1 2 1 0 1 0 0 1 2 2 0 2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 26 2013
STATUS
approved