Expansion of x*(4+5*x-13*x^2-x^3+x^4) / ( (1-x)*(1-10*x^2+x^4) ).

Terms

a(0) =4a(1) =9a(2) =36a(3) =85a(4) =352a(5) =837a(6) =3480a(7) =8281a(8) =34444a(9) =81969a(10) =340956a(11) =811405a(12) =3375112a(13) =8032077a(14) =33410160a(15) =79509361a(16) =330726484a(17) =787061529a(18) =3273854676a(19) =7791105925a(20) =32407820272a(21) =77123997717a(22) =320804348040a(23) =763448871241