OFFSET
0,4
LINKS
Index entries for linear recurrences with constant coefficients, signature (1,0,0,0,0,0,0,0,0,1).
FORMULA
G.f.: (1-x^9)/((1-x^3) * (1-x*(1+x^9))) = (1+x^3+x^6)/(1-x*(1+x^9)).
a(n) = a(n-1) + a(n-10).
PROG
(PARI) a(n) = sum(k=0, n\3, binomial(n-3*k, k\3));
(PARI) my(N=60, x='x+O('x^N)); Vec((1+x^3+x^6)/(1-x*(1+x^9)))
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Oct 01 2024
STATUS
approved