OFFSET
1,1
COMMENTS
Row 5 of A209485.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 2*a(n-1) - a(n-3) - 2*a(n-5) + 2*a(n-6) + a(n-8) - 2*a(n-10) + a(n-11).
Empirical g.f.: 2*x*(2 + 15*x + 32*x^2 + 57*x^3 + 62*x^4 + 59*x^5 + 34*x^6 + 13*x^7 + 2*x^8) / ((1 - x)^5*(1 + x)^2*(1 + x^2)*(1 + x + x^2)). - Colin Barker, Jul 10 2018
EXAMPLE
Some solutions for n=10:
-8 -5 -10 -6 -7 -6 -7 -8 -9 -7 -6 -10 -9 -8 -9 -6
-7 -4 1 -2 -4 0 -5 -5 9 -2 0 1 -1 0 2 -5
2 9 3 6 -5 -6 0 2 -7 6 4 -6 7 4 -7 1
3 -5 -4 -3 6 4 2 3 -3 2 0 7 2 -2 10 2
10 5 10 5 10 8 10 8 10 1 2 8 1 6 4 8
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 09 2012
STATUS
approved