Expansion of (1+3*x+5*x^2-x^3)/((1-x^2)*(1-3*x^2)).

Terms

a(0) =1a(1) =3a(2) =9a(3) =11a(4) =33a(5) =35a(6) =105a(7) =107a(8) =321a(9) =323a(10) =969a(11) =971a(12) =2913a(13) =2915a(14) =8745a(15) =8747a(16) =26241a(17) =26243a(18) =78729a(19) =78731a(20) =236193a(21) =236195a(22) =708585a(23) =708587a(24) =2125761a(25) =2125763a(26) =6377289a(27) =6377291a(28) =19131873a(29) =19131875