Series expansion of (1 + 2x + 4x^2)/(1 - 3x - 5x^2).

Terms

a(0) =1a(1) =5a(2) =24a(3) =97a(4) =411a(5) =1718a(6) =7209a(7) =30217a(8) =126696a(9) =531173a(10) =2226999a(11) =9336862a(12) =39145581a(13) =164121053a(14) =688091064a(15) =2884878457a(16) =12095090691a(17) =50709664358a(18) =212604446529a(19) =891361661377