Expansion of (1-x)/(1-x-x^4).

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =1a(5) =1a(6) =1a(7) =1a(8) =2a(9) =3a(10) =4a(11) =5a(12) =7a(13) =10a(14) =14a(15) =19a(16) =26a(17) =36a(18) =50a(19) =69a(20) =95a(21) =131a(22) =181a(23) =250a(24) =345a(25) =476a(26) =657a(27) =907a(28) =1252a(29) =1728