OFFSET
1,1
COMMENTS
Column 2 of A229521.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 2*a(n-1) + 8*a(n-2) - 7*a(n-3) - 4*a(n-4) + 19*a(n-5) - 17*a(n-6) + 20*a(n-7) - 12*a(n-8) + 17*a(n-9) + 3*a(n-10) + 13*a(n-11) + 16*a(n-12) - 7*a(n-13) + 2*a(n-14) + 8*a(n-15) -1 3*a(n-16) + 9*a(n-17) - 10*a(n-18) - a(n-19) + a(n-20).
EXAMPLE
Some solutions for n=3:
2 0 1 0 2 1 1 2 1 0 1 0 1 1 1 1 1 1 0 1
0 2 1 1 1 0 1 1 1 2 0 1 1 1 2 0 0 2 1 0
2 0 1 2 0 1 0 1 2 0 1 2 1 1 1 2 2 0 0 2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 25 2013
STATUS
approved