Expansion of 1/(x^k*(1-x-2*x^(k+1))) for k=9.

Terms

a(0) =1a(1) =3a(2) =5a(3) =7a(4) =9a(5) =11a(6) =13a(7) =15a(8) =17a(9) =19a(10) =21a(11) =27a(12) =37a(13) =51a(14) =69a(15) =91a(16) =117a(17) =147a(18) =181a(19) =219a(20) =261a(21) =315a(22) =389a(23) =491a(24) =629a(25) =811a(26) =1045a(27) =1339a(28) =1701a(29) =2139