OFFSET
0,2
LINKS
FORMULA
G.f.: (x^10 -x^9 +2*x^8 +x^7 +4*x^6 -2*x^5 +4*x^4 +x^3 +2*x^2 -x +1)/ ((x^2-x+1) *(x^2+x+1)^2 *(x+1)^4 *(x-1)^8).
MAPLE
a:= n-> coeff(series((x^10-x^9+2*x^8+x^7+4*x^6-2*x^5
+4*x^4+x^3+2*x^2-x+1)/((x^2-x+1) *(x^2+x+1)^2
*(x+1)^4 *(x-1)^8), x, n+1), x, n):
seq(a(n), n=0..50);
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Alois P. Heinz, Aug 17 2014
STATUS
approved