OFFSET
0,13
LINKS
Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, -1, -1, 0, -1, -1, 0, -1, -1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, -1).
FORMULA
G.f.: 1/((1-x^6)*(1-x^8)*(1-x^9)*(1-x^12)).
a(n) = a(n-6) + a(n-8) + a(n-9) + a(n-12) - a(n-14) - a(n-15) - a(n-17) - a(n-18) - a(n-20) - a(n-21) + a(n-23) + a(n-26) + a(n-27) + a(n-29) - a(n-35). - Wesley Ivan Hurt, Sep 04 2022
MATHEMATICA
CoefficientList[Series[1/((1-x^6)(1-x^8)(1-x^9)(1-x^12)), {x, 0, 100}], x] (* Jinyuan Wang, Mar 11 2020 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved