Expansion of (4+x-x^2+x^3-x^4+x^5) / (1-3*x-x^2+x^3-x^4+x^5-x^6).

Terms

a(0) =4a(1) =13a(2) =42a(3) =136a(4) =440a(5) =1424a(6) =4609a(7) =14918a(8) =48285a(9) =156284a(10) =505844a(11) =1637264a(12) =5299328a(13) =17152321a(14) =55516872a(15) =179691313a(16) =581606398a(17) =1882483892a(18) =6093030640a(19) =19721296176a(20) =63831867233a(21) =206604436042a(22) =668716032329