Expansion of (1+x-14*x^2+13*x^3)/(1-28*x^2+169*x^4).

Terms

a(0) =1a(1) =1a(2) =14a(3) =41a(4) =223a(5) =979a(6) =3878a(7) =20483a(8) =70897a(9) =408073a(10) =1329734a(11) =7964417a(12) =25250959a(13) =154039339a(14) =482301806a(15) =2967115019a(16) =9237038497a(17) =57046572241a(18) =177128072702