Expansion of 1/(1-5*x-x^3).

Terms

a(0) =1a(1) =5a(2) =25a(3) =126a(4) =635a(5) =3200a(6) =16126a(7) =81265a(8) =409525a(9) =2063751a(10) =10400020a(11) =52409625a(12) =264111876a(13) =1330959400a(14) =6707206625a(15) =33800145001a(16) =170331684405a(17) =858365628650