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

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =3a(6) =3a(7) =3a(8) =5a(9) =7a(10) =9a(11) =11a(12) =15a(13) =21a(14) =27a(15) =35a(16) =47a(17) =63a(18) =83a(19) =109a(20) =145a(21) =193a(22) =255a(23) =337a(24) =447a(25) =593a(26) =785a(27) =1039a(28) =1377a(29) =1825