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

Terms

a(0) =1a(1) =1a(2) =0a(3) =1a(4) =3a(5) =2a(6) =1a(7) =5a(8) =8a(9) =5a(10) =7a(11) =18a(12) =21a(13) =17a(14) =32a(15) =57a(16) =59a(17) =66a(18) =121a(19) =173a(20) =184a(21) =253a(22) =415a(23) =530a(24) =621a(25) =921a(26) =1360a(27) =1681a(28) =2163a(29) =3202