OFFSET
1,1
COMMENTS
Row 5 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) - 2*a(n-4) + 2*a(n-6) - 2*a(n-7) + 3*a(n-8) - 3*a(n-9) + a(n-10).
Empirical g.f.: 2*x*(4 + 22*x + 47*x^2 + 66*x^3 + 63*x^4 + 48*x^5 + 21*x^6 + 6*x^7 - x^8) / ((1 - x)^5*(1 + x)*(1 + x^2)*(1 + x + x^2)). - Colin Barker, Jul 07 2018
EXAMPLE
Some solutions for n=5:
-5 -3 -4 -4 -5 -5 -5 -5 -3 -4 -5 -5 -4 -5 -2 -4
0 2 2 2 -5 4 5 -5 1 -2 4 3 1 -3 4 0
5 -2 3 -2 3 -2 -1 3 -2 2 2 3 3 2 -1 5
-2 4 2 5 5 2 -4 2 5 5 1 0 -2 1 0 1
2 -1 -3 -1 2 1 5 5 -1 -1 -2 -1 2 5 -1 -2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 03 2012
STATUS
approved