Expansion of (1 - x + x^3)/((1 - x + x^3)^2 - 4*x^3).

Terms

a(0) =1a(1) =1a(2) =1a(3) =4a(4) =11a(5) =22a(6) =42a(7) =91a(8) =205a(9) =443a(10) =936a(11) =1999a(12) =4316a(13) =9300a(14) =19949a(15) =42785a(16) =91917a(17) =197548a(18) =424331a(19) =911218a(20) =1957086a(21) =4203927a(22) =9029949a(23) =19395031a(24) =41657808a(25) =89477119a(26) =192189304a(27) =412803240a(28) =886657081a(29) =1904448737