Expansion of 1/(x^k*(1-x-2*x^(k+1))) for k=5.

Terms

a(0) =1a(1) =3a(2) =5a(3) =7a(4) =9a(5) =11a(6) =13a(7) =19a(8) =29a(9) =43a(10) =61a(11) =83a(12) =109a(13) =147a(14) =205a(15) =291a(16) =413a(17) =579a(18) =797a(19) =1091a(20) =1501a(21) =2083a(22) =2909a(23) =4067a(24) =5661a(25) =7843a(26) =10845a(27) =15011a(28) =20829a(29) =28963