OFFSET
1,1
COMMENTS
Row 4 of A208945.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-1) - 3*a(n-2) + 2*a(n-3) - 3*a(n-4) + 3*a(n-5) - a(n-6).
Empirical g.f.: x*(5 + 7*x + 6*x^2 + 7*x^3 - x^4) / ((1 - x)^4*(1 + x + x^2)). - Colin Barker, Mar 07 2018
EXAMPLE
Some solutions for n=5:
-5 -3 -3 -3 -5 -3 -5 -4 -3 -4 -4 -4 -4 -4 -5 -3
2 0 -3 3 5 4 -5 2 5 1 0 1 0 -3 1 0
4 2 1 -1 0 -2 5 1 -2 -1 -1 -2 3 3 2 5
-1 1 5 1 0 1 5 1 0 4 5 5 1 4 2 -2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 03 2012
STATUS
approved