Expansion of 1/(1 - 5*x - 4*x^3).

Terms

a(0) =1a(1) =5a(2) =25a(3) =129a(4) =665a(5) =3425a(6) =17641a(7) =90865a(8) =468025a(9) =2410689a(10) =12416905a(11) =63956625a(12) =329425881a(13) =1696797025a(14) =8739811625a(15) =45016761649a(16) =231870996345