OFFSET
1,1
COMMENTS
Column 6 of A229534.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 36*a(n-1) - 436*a(n-2) + 1854*a(n-3) + 340*a(n-4) - 19128*a(n-5) + 23849*a(n-6) + 56184*a(n-7) - 108224*a(n-8) - 40816*a(n-9) + 160400*a(n-10) - 34136*a(n-11) - 83203*a(n-12) + 42628*a(n-13) + 6468*a(n-14) - 6334*a(n-15) + 204*a(n-16) + 240*a(n-17) - 25*a(n-18) for n > 19.
EXAMPLE
Some solutions for n=4:
0 1 0 1 0 1 0 1 0 2 1 2 0 1 2 0 1 0 0 0 1 2 1 2
2 1 2 1 2 1 0 1 0 2 0 2 0 1 2 0 2 0 1 2 1 2 1 2
2 0 2 0 2 1 0 1 0 1 0 1 2 1 2 1 2 1 1 2 0 2 1 2
0 1 2 1 2 1 1 2 0 2 0 1 2 0 2 1 0 0 0 2 0 2 1 0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 25 2013
STATUS
approved