Expansion of 1/(1 - x - x^2 + x^18 - x^20).

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =5a(5) =8a(6) =13a(7) =21a(8) =34a(9) =55a(10) =89a(11) =144a(12) =233a(13) =377a(14) =610a(15) =987a(16) =1597a(17) =2584a(18) =4180a(19) =6763a(20) =10942a(21) =17703a(22) =28642a(23) =46340a(24) =74974a(25) =121301a(26) =196254a(27) =317521a(28) =513720a(29) =831152