Expansion of 1/(x^k*(1-x-3*x^(k+1))) for k=8.

Terms

a(0) =1a(1) =4a(2) =7a(3) =10a(4) =13a(5) =16a(6) =19a(7) =22a(8) =25a(9) =28a(10) =40a(11) =61a(12) =91a(13) =130a(14) =178a(15) =235a(16) =301a(17) =376a(18) =460a(19) =580a(20) =763a(21) =1036a(22) =1426a(23) =1960a(24) =2665a(25) =3568a(26) =4696a(27) =6076a(28) =7816a(29) =10105