Expansion of (1+2x^2)/(1-x-4x^5).

Terms

a(0) =1a(1) =1a(2) =3a(3) =3a(4) =3a(5) =7a(6) =11a(7) =23a(8) =35a(9) =47a(10) =75a(11) =119a(12) =211a(13) =351a(14) =539a(15) =839a(16) =1315a(17) =2159a(18) =3563a(19) =5719a(20) =9075a(21) =14335a(22) =22971a(23) =37223a(24) =60099a(25) =96399a(26) =153739a(27) =245623a(28) =394515a(29) =634911