OFFSET
1,1
COMMENTS
Row 6 of A209073.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 5*a(n-1) - 10*a(n-2) + 11*a(n-3) - 10*a(n-4) + 11*a(n-5) - 10*a(n-6) + 5*a(n-7) - a(n-8) for n > 9.
Empirical g.f.: x*(19 + 170*x + 330*x^2 + 355*x^3 + 161*x^4 + 30*x^5 - 16*x^6 + 9*x^7 - 2*x^8) / ((1 - x)^6*(1 + x + x^2)). - Colin Barker, Jul 08 2018
EXAMPLE
Some solutions for n=6:
-4 -5 -4 -5 -5 -5 -4 -3 -5 -5 -5 -5 -5 -6 -6 -5
3 -2 4 -1 -1 -3 3 2 1 5 -1 -1 -5 6 2 5
1 5 3 -2 4 -1 -3 -2 0 0 4 4 5 2 4 0
1 -4 -1 6 -2 3 3 -1 4 -4 -2 -4 6 -4 1 -2
-3 4 -2 4 -2 2 -2 1 0 5 -1 6 -5 6 3 -4
2 2 0 -2 6 4 3 3 0 -1 5 0 4 -4 -4 6
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 04 2012
STATUS
approved